Nephosthe weather behind the paintings
Thomas Cole, Kaaterskill Falls: water descends past a dark cavern opening, with mist below and distant mountains beyond.
Thomas Cole, Kaaterskill Falls, 1826. Oil on canvas. Wadsworth Atheneum Museum of Art, 1848.15, Bequest of Daniel Wadsworth. Public domain (PD-Art), via Wikimedia Commons.

A study against the weather record

Thomas Cole

Kaaterskill Falls

1826 · Wadsworth Atheneum Museum of Art, 1848.15 · Bequest of Daniel Wadsworth

A first encounter in 1825, a return in 1826, then a studio canvas. The falls run in full force. Was the spring and early summer of Cole’s return wet or dry?

2visits behind the picture’s history. Weather records address the return of 1826; they cannot date the water in the painting.

Water at the falls unknownPainted day unknown

The recordsThe painting’s history at COLE 200

The Nephos method

How this study was read

The method in full
  1. What is written

    First encounter in 1825, a return to the Catskills and Lake George in 1826, then a studio painting for Daniel Wadsworth. Noble says autumn for the first trip; the Met chronology says summer. The 1826 return, approximately 6 May–6 July, is the weather window.

  2. Records of those days

    Not found or not yet searched

    • The exact dates of either visit to the falls are unknown. The July letter also covers Lake George.
    • No verified rainfall amount or flow measurement at the falls has been established. Albany’s calendar months cannot supply rainfall for the exact visit envelope.
    • The 1825 trip’s season is disputed. Watervliet begins in August, and September 1825 needs checking; no 1825 weather figures are published.
  3. Each claim tested

    • Was the spring and early summer of the return wet or dry? At Albany, May 1826 had 0.76 inches, driest of 24 Mays (1826–1849); June had 6.22 inches, fourth wettest of 24 Junes. The regional record changes between months. Rainfall and discharge at the falls remain unknown.
    • Temperature as context for the return journey. The fixed-hour mean at Watervliet was 69.5 °F, second warmest of 12 accepted windows. Temperature does not establish the falls’ flow.
    • Can the painted torrent be tied to a weather event? No. The canvas repeats an earlier view, with renewed sketching associated with 1826, and no painted day or exact falls visit is documented.
  4. Verdict

    A dry May followed by a wet June at Albany, during a warm return season at Watervliet. These regional records put Cole’s travels in context; the water at Kaaterskill Falls and the day in the canvas remain unknown.

    • UnknownWater at the falls during Cole’s return Regional monthly rain is measurable; catchment rainfall, visit dates and discharge are not established.
    • UnknownA painted day in 1826 A studio picture, repeating the 1825 view; no document fixes the depicted weather to a day.

What this cannot tell you. The canvas’s autumn colours differ from the May–early July 1826 return; the records cannot decide whether they recall the 1825 trip described by Noble or are a pictorial choice. May includes 1–5 May before the approximate window; June is wholly inside it. No total for 1–6 July has been established. Rainfall ranks describe Hough’s published table. Historical gauge practice changed; this is not a homogenized modern series. Greenville’s nearer 1826 register has unresolved gauge figures and fractional rain-day counts; no rainfall amount is used. Watervliet ranks use 1826, 1827, 1828, 1830, 1831, 1833, 1835, 1836, 1837, 1838, 1839 and 1840. The other three windows have missing or flagged readings.

Step 1 · The picture’s history

First encounter, return, studio

Cole first travelled up the Hudson in 1825. His first painting of Kaaterskill Falls, bought by John Trumbull, is now lost. Noble’s 1853 biography places the journey in autumn; the Met’s 2018 chronology places it in summer. The bookstore display that October–November and Trumbull’s letter of 14 November 1825 put the first canvas before that date; they do not settle the season of the trip.

The Wadsworth picture belongs to the following year. On 6 July 1826, Cole wrote to Daniel Wadsworth of sketching around Lake George and the Catskills during the preceding month or two. The Met chronology connects those new sketches to this canvas, its figure 146, accession 1848.15. In November, Cole told Wadsworth how difficult it was to repeat a view. The painting was made in the studio; no painted day is documented.

The foliage is painted in autumn colours. Gaudio calls this an “autumnal landscape view” (p. 457). That autumn does not match the May–early July 1826 return window. It is consistent with Noble’s autumn account of the first trip in 1825, or with a pictorial choice; the records cannot decide between them. Gaudio also describes a “clearing sky” in the distance (p. 453). These descriptions concern the painted scene. The weather window covers Cole’s return, not the season or weather depicted.

We use 6 May–6 July 1826, 62 days inclusive, as an approximate reading of the July letter. It is a window for the return journey, including Lake George, not an itinerary at the falls. No 1825 weather figures are shown: Watervliet begins on 1 August, and its September readings need further checking.

Step 2 · The water question

A dry May, then a wet June—at Albany

The fall pours past the cavern opening and breaks into mist. Michael Gaudio’s account of this painting places us behind the upper fall, looking out towards the mountains. Was the spring and early summer of Cole’s return wet or dry?

Albany Academy’s register, kept by T. Romeyn Beck and published by Franklin B. Hough, gives 0.76 inches in May 1826, the driest May of its 24 years, 1826–1849. June has 6.22 inches, fourth wettest among the same 24 Junes. The Hudson-valley record changes direction between the two months; it does not support calling the whole return uniformly wet or dry.

These are whole calendar months. May includes five days before our approximate window; June falls wholly within it. We have no verified rainfall total for the first six days of July, or for the falls’ catchment. The monthly figures cannot tell us when rain fell during Cole’s travels.

Albany Academy rainfall in May and June, 1826–1849Each bar is one whole calendar month, in inches. Red marks 1826: May 0.76 inches, June 6.22 inches. The two panels use the same scale. These are regional observations, not rain at the falls.May · inches of rain02468May 1826: 0.76 inches1826May 1827: 3.43 inchesMay 1828: 4.48 inchesMay 1829: 2.68 inchesMay 1830: 4.63 inches1830May 1831: 2.88 inchesMay 1832: 2.69 inchesMay 1833: 8.47 inchesMay 1834: 3.70 inchesMay 1835: 2.70 inches1835May 1836: 3.86 inchesMay 1837: 7.34 inchesMay 1838: 7.45 inchesMay 1839: 3.83 inchesMay 1840: 2.28 inches1840May 1841: 2.24 inchesMay 1842: 1.44 inchesMay 1843: 2.07 inchesMay 1844: 5.94 inchesMay 1845: 3.92 inches1845May 1846: 3.45 inchesMay 1847: 2.25 inchesMay 1848: 8.11 inchesMay 1849: 5.40 inches1849June · inches of rain02468June 1826: 6.22 inches1826June 1827: 3.75 inchesJune 1828: 2.87 inchesJune 1829: 3.90 inchesJune 1830: 7.58 inches1830June 1831: 4.04 inchesJune 1832: 3.57 inchesJune 1833: 2.36 inchesJune 1834: 2.32 inchesJune 1835: 6.48 inches1835June 1836: 5.67 inchesJune 1837: 5.06 inchesJune 1838: 7.60 inchesJune 1839: 5.12 inchesJune 1840: 3.47 inches1840June 1841: 2.10 inchesJune 1842: 4.44 inchesJune 1843: 5.54 inchesJune 1844: 4.60 inchesJune 1845: 3.42 inches1845June 1846: 3.84 inchesJune 1847: 5.06 inchesJune 1848: 4.72 inchesJune 1849: 4.45 inches1849
Albany Academy, Hough (1855), pp. 5–6. Red: 1826. Each month is ranked against the same month in the published table; no modern normal is used. Gauge practice changed during these years, so the ranks describe this historical table, not a homogenized climate series.
The rainfall transcription: every May and June, 1826–1849
YearMay, inchesJune, inches
18260.766.22
18273.433.75
18284.482.87
18292.683.90
18304.637.58
18312.884.04
18322.693.57
18338.472.36
18343.702.32
18352.706.48
18363.865.67
18377.345.06
18387.457.60
18393.835.12
18402.283.47
18412.242.10
18421.444.44
18432.075.54
18445.944.60
18453.923.42
18463.453.84
18472.255.06
18488.114.72
18495.404.45

Step 3 · Context for the return

A warm start to summer

At Watervliet Arsenal, 65.4 km from the falls in a straight line, the thermometer was read at 7 a.m., 2 p.m. and 9 p.m. All 186 readings survive for the 62-day window in 1826. Their mean is 69.5 °F, second warmest of 12 complete, unflagged windows in the 1826–1840 period with that same schedule. This describes warmth in the region during the return; temperature does not answer the water question.

The comparison years are 1826, 1827, 1828, 1830, 1831, 1833, 1835, 1836, 1837, 1838, 1839, 1840. Windows in 1829, 1832 and 1834 have missing or flagged readings and are excluded. These are fixed-hour means, not means of daily highs and lows. Watervliet’s rain cells are blank in this window; blank does not mean dry.

The same 62 days in each accepted comparison year
YearMean of 07/14/21 h readings, °F
182669.5
182767.1
182870.0
183062.3
183169.3
183359.6
183564.5
183663.7
183763.1
183866.3
183962.5
184065.1
Every thermometer reading, 6 May–6 July 1826
18267 a.m., °F2 p.m., °F9 p.m., °F
6 May517053
7 May526455
8 May506354
9 May516559
10 May507458
11 May517858
12 May518464
13 May628770
14 May648671
15 May699374
16 May719474
17 May729264
18 May598061
19 May537464
20 May588465
21 May618572
22 May668372
23 May648271
24 May658168
25 May577866
26 May577871
27 May668669
28 May707163
29 May546751
30 May536659
31 May547569
1 June667969
2 June667872
3 June718073
4 June748474
5 June636963
6 June586462
7 June667770
8 June708477
9 June718769
10 June698677
11 June748571
12 June617768
13 June637766
14 June627871
15 June667970
16 June627160
17 June617567
18 June637767
19 June707369
20 June647263
21 June646662
22 June657265
23 June628165
24 June647969
25 June718472
26 June726968
27 June647765
28 June658073
29 June727373
30 June708473
1 July668173
2 July697164
3 July658371
4 July678070
5 July708672
6 July698573

Step 4 · Where the records stop

The water in the canvas remains undated

The records give the return journey a regional setting: a dry May and wetter June at Albany, with warmth at Watervliet. They cannot connect the painted torrent to a particular rainfall event. Neither the date of Cole’s renewed visit to the falls nor a local discharge measurement is established. A studio picture that repeats an earlier view can preserve an encounter without preserving the weather of a single day.

A nearer register at Greenville survives for 1826, but its gauge scale or printing needs resolution and its rain-day columns mix fractional counts and blanks. It supplies no reliable rainfall amount for this study. The gap is evidence about water at the falls, not a reason to let the thermometer stand in for it.

Sources

Every source on this page

Each file was downloaded and given a fingerprint (its sha256). The page is rebuilt from these files and will not build if a fingerprint changes, so every number above comes from them rather than being typed in.

  1. MRCC, Albany Academy station metadataNOAA/CDMP historical federal observations; MRCC asks for credit · retrieved 3 October 2026 · Estimated academy location for the segment beginning January 1827; location context onlysha256 6ad9ec5555cba7426c079e528e593da46c225719bd52bf3cc6e2cf0c6bfaaca6
  2. Hough (1855), Albany Academy, May 1826–1849Public domain: Hough 1855; Cornell/Internet Archive scan · retrieved 3 October 2026 · p. 5sha256 228f47acbc7738f22eccc881bedc0d328d139252cdd52665311e5c2b3834163f
  3. Hough (1855), Albany Academy, June 1826–1849Public domain: Hough 1855; Cornell/Internet Archive scan · retrieved 3 October 2026 · p. 6sha256 bf2c6c66ad68d074dc4033625dac4bea95eb34d68d6c752556073966956c56f2
  4. Hough (1855), Albany Academy observers and locationPublic domain: Hough 1855; Cornell/Internet Archive scan · retrieved 3 October 2026 · p. 3sha256 7fc50410e07c0ec1eab2caa53526b41c6a7a6f2a84084011f7094ab1b960f01a
  5. Hough (1855), Results of a Series of Meteorological ObservationsPublic domain, 1855; Cornell/Internet Archive scan with no known US copyright restrictions · retrieved 3 October 2026 · Introduction pp. v–vi; Greenville p. 166sha256 38fad66f1cf5d2adec33143291036295b11bd6279b0b553545cfc32d9b38f03a
  6. Nephos transcription of Albany rainfall, read from Hough’s scansNephos transcription of public-domain numerical tables · retrieved 3 October 2026 · May and June, all 24 rows; decimal commas converted to pointssha256 ba14ce45a2de6a4220b49488edde77bc7962cdbc0f63e2044266ad06d22428dc
  7. Shannon Vittoria, chronology in Thomas Cole’s Journey (Met, 2018)Copyright 2018 Metropolitan Museum of Art; publisher provides free PDF for research; no republication licence · retrieved 3 October 2026 · pp. 247–248, fig. 146; p. 274 note 7sha256 5e436228922d2f1c1a0fb4412a2cdc495a045abb753620027630da8b3c8eb989
  8. Text extraction of the Met catalogueCopyright 2018 Metropolitan Museum of Art; publisher provides free PDF for research; no republication licence · retrieved 3 October 2026 · Same PDF, PyMuPDF extractionsha256 85225d1f8cb5aa9323429df2034c90113bd6cc2a8437075881168356610f7402
  9. Michael Gaudio, At the Mouth of the Cave (Art History 33:3, 2010)Copyright 2010 Association of Art Historians; essay supplied by Clark Art Institute for research; no open licence · retrieved 3 October 2026 · pp. 450–452, 464 note 8sha256 e2b1538aeec87ae777f9aafbbf6876f120bfe72de540a693143b67c64253c2ce
  10. Text extraction of Gaudio’s essayCopyright 2010 Association of Art Historians; essay supplied by Clark Art Institute for research; no open licence · retrieved 3 October 2026 · Same PDF, PyMuPDF extractionsha256 e1e6e9a2d597ac775f34033d3aaf98bcc10723c85243bf261b5758f9bad2cf33
  11. Wadsworth Atheneum, Museum on the Move teachers’ manualCopyright Wadsworth Atheneum; museum provides educational PDF; research cache, no image reuse permission inferred · retrieved 3 October 2026 · p. 39 (PDF p. 39), 1848.15sha256 78ad001c88fb5374f2fffe3a2a156dfbcf9fe3911acf47fda5594975cc05f7a7
  12. Thomas Cole National Historic Site, COLE 200Copyright Thomas Cole National Historic Site; public page, research cache only · retrieved 3 October 2026 · Lost original and Wadsworth versionsha256 70a8cc607fca9afb97d02629435d78d7737cb878383e3ee64878f36d507e6229
  13. OpenStreetMap, Kaaterskill FallsODbL 1.0; OpenStreetMap contributors · retrieved 3 October 2026 · Waterfall node 2529994212sha256 247a25a7fa514d22c20e524d073481193498ada3ac8ab5b48c24bba0a3122444
  14. Wikimedia Commons, Cole Thomas Kaaterskill Falls 1826Wikimedia Commons file metadata CC BY-SA; depicted work and faithful reproduction PD-Art · retrieved 3 October 2026 · PD-Art declarationsha256 6c41f31becd4d24312e441ba5f0c980702fef0d23e776dd12ff2fef057adbaf1
  15. Thomas Cole, Kaaterskill Falls (1826), Wadsworth 1848.15Public domain, PD-Art faithful reproduction of Thomas Cole (died 1848), per cached Commons file page · retrieved 3 October 2026 · Original Commons imagesha256 d743a2e86e85362bfddff864d4e0fa307a20748d72858f34e49040410e8cf40f
  16. Watervliet Arsenal daily register, NOAA/CDMP, keyed and checked by MRCCNOAA data; credit MRCC · retrieved 29 September 2026sha256 39dc7c82ebdd658bd601be43f125069d818b766ed0a86266f63a8c87eea3b487
  17. Watervliet Arsenal station metadata, MRCCNOAA data; credit MRCC · retrieved 29 September 2026sha256 bef28cae431a241b63f8940e5c884b395c9ff697188bed47a500fe102418cc99
  18. L. L. Noble, The Course of Empire (1853), p. 56Public domain historical text · retrieved 29 September 2026sha256 c90e60284123221a31524a545c1db6c52677b42a018a5732496c4ed85bd3affc

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