Nephosthe weather behind the paintings
Caspar David Friedrich, Meadows near Greifswald: horses in green meadows, the city’s towers on a distant horizon, and a broad pale sky.
Caspar David Friedrich, Meadows near Greifswald, 1821/22. Hamburger Kunsthalle / bpk, photo Elke Walford. Public Domain Mark 1.0, via the museums’ Friedrich anniversary chronicle.

A study against the weather record

Caspar David Friedrich

Meadows near Greifswald

c. 1821–22 · Hamburger Kunsthalle, 1047 · Oil on canvas

An earlier drawing of Greifswald became a later studio painting. What does that gap let the weather record test?

c. 1806the probable date of the drawing. The canvas’s cloudless sky belongs to a later composition; no weather day is documented.

Painted weather unknownRegional travel context

The recordsThe museum’s account

The Nephos method

How this study was read

The method in full
  1. What is written

    The museum dates the painting 1821/22. Its drawing is probably from around 1806 and was reused in Dresden. The 1806 journey is documented; the day of the meadow drawing and the weather represented in the canvas are not.

  2. Records of those days

    • The museums’ 1806 chronologyDeparture from Dresden on 24 April; Greifswald on 13 June; Rügen from 29 June to 20 July; return in August. May–July supplies three whole calendar months of travel context, not dates for the drawing.
    • Berlin Climate Record, Kadow et al. (2016)Daily mean temperatures for Berlin’s changing inner-city observing sites. Regional context for the journey only; temperature supplies no test of cloud or haze at Greifswald.

    Not found or not yet searched

    • No inscription or contemporary document has been verified that dates this drawing to a day or month.
    • No local weather testimony has been verified for its making. Greifswald’s DWD daily archive starts much later.
  3. Each claim tested

    • Does the canvas date identify the weather to compare? No. The museum connects the later studio canvas to an earlier drawing, also used for a moonlit view. The making history separates a recorded place from a recorded sky.
    • What did Friedrich change? The museum’s account describes a strongly symmetrical arrangement of the view. Birte Frenssen, discussing the drawing in Weltkunst, identifies an elongated, narrowed church tower. These are attributed readings of his construction of the landscape.
    • Can the regional thermometer confirm the painted cloudless sky? No. Berlin’s temperatures describe Berlin during the journey. They neither verify nor contradict cloudlessness or haze at the meadow.
  4. Verdict

    A recognisable Greifswald view was reshaped for a later studio painting. The documentary dates support travel context, but do not turn the painted sky into an observation from a known day.

    • UnknownThe weather in the painted sky The drawing has only an approximate year and the canvas was made later; no local sky record can be matched.

What this cannot tell you. The museum uses 1821/22; Heck’s 2018 article uses the broader 1820–22. Neither gives a weather day. The Berlin series changes observing sites. Its publisher corrected identified errors but applied no additional bias correction. No modern anomaly or weather rank is claimed. The 1806 weather window concerns the journey and is conditional context for a drawing only probably dated to that year.

Step 1 · How the picture was made

The drawing precedes the sky in paint

The Hamburger Kunsthalle dates this canvas 1821/22. The Pommersches Landesmuseum, which holds the preparatory meadow drawing, says Friedrich used it in his Dresden studio for both Greifswald in Moonlight (1817) and this later painting. A view recorded on paper could therefore serve more than one painted illumination.

The drawing’s date needs a qualifier. Johannes Grave’s museum account places it probably around 1806; this study has not established a dated inscription on the sheet. The canvas date also varies: the museum uses 1821/22, while Kilian Heck’s 2018 article uses the broader 1820–22. Neither date identifies the weather represented.

The museums’ chronology records departure from Dresden on 24 April 1806, a stay in Neubrandenburg in May, Greifswald on 13 June, Rügen from 29 June to 20 July, and return to Dresden in August. We use May–July 1806, the three whole calendar months between departure and return, for regional travel context. This is not a claim that the meadow drawing was made within those months, or that Friedrich stayed continuously in Greifswald.

The date evidence is a modern museum chronology and the museums’ accounts of the drawing. No artist’s letter or contemporary weather diary has been verified that fixes the making of this sheet.

Step 2 · What Friedrich changed

A recognisable city, deliberately arranged

Grave describes the city centred in a strongly symmetrical composition, set between green meadows and a luminous, cloudless sky. Haze distances the town. Heck likewise reads the contrast between the remote city and the near horses and meadows as part of the picture’s effect. These are descriptions of the painting, not measurements of atmospheric visibility.

The construction begins on paper. In Simon Elson’s report on the drawing, curator Birte Frenssen identifies the alteration of St Nicholas’s tower: Friedrich narrows and lengthens its rounded baroque upper part. The city remains identifiable, but topographical recognition does not mean that every feature has been copied unchanged. Nor does the reuse of the drawing establish that either painted sky records the weather when he drew it.

Step 3 · The regional record

Berlin during the 1806 journey

The Berlin Climate Record provides all 92 daily means for May–July 1806. Its reference point is about 177 km south of Greifswald. That distance is calculated to the city reference point, not to an exact drawing viewpoint. These are Berlin temperatures, shown to put the journey in a regional setting; they are not local observations at the meadow.

June’s mean in this series is lower than May’s, followed by a warmer July. The daily values show the variation within those months. Neither result tests the painting’s cloudlessness: temperature alone does not tell us the cloud cover, and no day of the drawing has been established.

Berlin daily mean temperature, May–July 180692 daily means in degrees Celsius. Regional travel context only; not observations at the meadow. All values are in the table below.°C · Berlin inner city01020301 May1 June1 July31 July
Kadow et al. (2016), Berlin Climate Record, PANGAEA.869767. Published daily means; Nephos chart, CC BY-SA 3.0. The publisher corrected identified errors in the digitized series but applied no additional bias correction.
Arithmetic means of the published daily means, Berlin alone
MonthDays presentMean, °C
May 18063115.2
June 18063014.3
July 18063117.0
Every daily mean used in the calculation
DateBerlin daily mean, °C
1 May 18066.7
2 May 180610.9
3 May 180613.9
4 May 180613.2
5 May 180610.9
6 May 180612.4
7 May 180614.6
8 May 180615.7
9 May 180615.0
10 May 180617.0
11 May 180617.8
12 May 180618.2
13 May 180611.1
14 May 180616.7
15 May 180620.0
16 May 180619.3
17 May 180615.4
18 May 180612.6
19 May 180613.7
20 May 180613.9
21 May 180616.8
22 May 180620.0
23 May 180618.7
24 May 180616.8
25 May 180613.2
26 May 180617.4
27 May 180612.4
28 May 180616.5
29 May 180620.0
30 May 180618.0
31 May 180613.7
1 June 180611.8
2 June 18069.3
3 June 180611.5
4 June 180613.9
5 June 180615.2
6 June 180616.7
7 June 180618.0
8 June 180618.2
9 June 180619.4
10 June 180622.0
11 June 180624.8
12 June 180615.7
13 June 180612.4
14 June 180615.7
15 June 180618.7
16 June 180618.5
17 June 180613.5
18 June 180612.2
19 June 180615.7
20 June 180613.3
21 June 18068.9
22 June 180610.7
23 June 18067.8
24 June 18069.1
25 June 180610.0
26 June 180611.8
27 June 180615.0
28 June 180612.2
29 June 180613.0
30 June 180615.0
1 July 180613.0
2 July 180611.8
3 July 180610.4
4 July 180613.0
5 July 180614.1
6 July 180614.3
7 July 180615.6
8 July 180616.1
9 July 180618.7
10 July 180618.3
11 July 180620.6
12 July 180619.1
13 July 180618.3
14 July 180619.8
15 July 180617.4
16 July 180616.8
17 July 180617.8
18 July 180620.0
19 July 180617.6
20 July 180614.3
21 July 180615.2
22 July 180618.0
23 July 180618.0
24 July 180619.8
25 July 180619.1
26 July 180620.0
27 July 180620.0
28 July 180619.1
29 July 180615.4
30 July 180618.2
31 July 180618.3

The series combines changing inner-city observing sites and ends in 1934. We publish no weather rank or comparison with a modern normal. The monthly means are summaries of this historical series, not estimates of Greifswald’s temperature.

Step 4 · What the comparison can establish

The place is traceable; the weather day is not

The evidence supports a study of how Friedrich made the picture: an earlier view of his home city, altered in the drawing and reused in a later studio composition. It does not support dating the canvas’s sky from a thermometer. The painted weather remains unknown; the Berlin record neither verifies nor contradicts it.

The DWD daily inventory checked here starts Greifswald station 01757 on 1 March 1898, too late for the drawing or canvas. Lund’s downloaded monthly archive has no entries for May–July 1806. These are specific archive gaps, not proof that nobody observed weather locally. A securely dated drawing and a matching local account of cloud or visibility would be needed to make a closer test.

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. Hamburger Kunsthalle, Caspar David Friedrich exhibition: Wiesen bei GreifswaldMuseum text; brief quotation and paraphrase · retrieved 8 October 2026sha256 ec887fbbe08be4f09b390b7fcc446f40861ec05e5569e40acf004bae925cafdf
  2. Johannes Grave, Wiesen bei Greifswald, joint museum anniversary chronicleMuseum text; brief quotation and paraphrase; image marked Public Domain Mark 1.0 · retrieved 8 October 2026sha256 13d4ef24ab24d32dbfa3c73cf3fd23d87c8346ae5966621247a17d8970a5c1f8
  3. Pommersches Landesmuseum, Friedrich in den Wiesen (page text; film not transcribed)Museum text; brief quotation and paraphrase · retrieved 8 October 2026sha256 b8ab0dd2b8c2ec24ee3808d309e9b836d227e8153ed2d19fc540f05380ceae71
  4. Joint museum anniversary chronicle, entries for Friedrich’s 1806 journeyMuseum text; brief quotation and paraphrase · retrieved 8 October 2026sha256 ac9f8d9ccc2cdc26f92dd8e7bd880757bfe359c03eed6ca0620dafbb48971e81
  5. Kilian Heck, Buildings, Portraits and Trees (2018), pp. 5–6; DOI 10.12697/BJAH.2018.16.01Publisher’s open-access article; brief quotation and paraphrase; no image reuse · retrieved 8 October 2026sha256 997ec4838d7d1265954e827099640e134e783bd2fc63b63389e8c5ff86426440
  6. PyMuPDF text extraction of Heck (2018)Same article; local text extraction for quotation checking · retrieved 8 October 2026sha256 db9acb98743fdb2a35b8ae1adc0c32302c59f1fb4f1a10f012d05be30bf942f3
  7. Simon Elson, Ein Caspar David Friedrich für Greifswald (Weltkunst, 4 September 2017), reporting Birte FrenssenCopyright Weltkunst; attributed paraphrase only · retrieved 8 October 2026sha256 0b1e0a9a809aa55b07c553e60516ad11efc71e51c4ce1e429cf11727ce23c2c7
  8. Kadow, Wentzel, Jaekel, Bahlo and Cubasch (2016), Berlin Climate Record: daily mean temperature, 1766–1934CC BY-SA 3.0; PANGAEA. Berlin-derived data and chart shared under the same licence · retrieved 8 October 2026sha256 c58698c3da82e2dfc370474f466009bd68a649ed936873b15b9f25e6d725d269
  9. Deutscher Wetterdienst, daily climate station inventory (coverage check)CC BY 4.0, Deutscher Wetterdienst; cached terms dated May 2024 · retrieved 8 October 2026sha256 dcfd7322e4ae3ddb9cef2619f2034b57945315a81ae64e3913daf8096bc81c7b
  10. SMHI, Lund 53430, monthly mean air temperature, corrected archive (coverage check)SMHI open data; CC BY 4.0, attribution SMHI · retrieved 8 October 2026sha256 a3efc3fe42bb13d06841bef8b49cb6ca30db5c6c38763ddc03f376f5aef93108
  11. John Cappelen, ed., DMI Report 21-02 (2021), tables 16 and 57: Copenhagen candidate metadataDMI permits data publication with reference and acknowledgment; candidate documentation, no Copenhagen values used · retrieved 8 October 2026sha256 560d4dc726e995a8f51922357a62fecfaedab06f7fe00ac2443cdb183200239c
  12. OpenStreetMap, Greifswald city reference point (relation 62363)ODbL 1.0, OpenStreetMap contributors; not the exact drawing viewpoint · retrieved 8 October 2026sha256 d3dc9b0e18f683542a76c390e88da54090064fbeffbfacb177c82c52de06e1b9
  13. Wikimedia Commons, object metadata: accession 1047Commons file metadata CC BY-SA; image on this page comes instead from the museum chronicle · retrieved 8 October 2026sha256 8ab8775b198a2ed6bc301e6dff95ee7a50ee3846e94881ba7312f53bdab179b1
  14. Friedrich, Wiesen bei Greifswald, Hamburger Kunsthalle / bpk, photo Elke WalfordPublic Domain Mark 1.0, explicitly stated on the cached museum chronicle page · retrieved 8 October 2026sha256 44e14c039a30932c7e817aab6ea7f9f8a7f172ed1e0b206b6bbecc9bba00c4a8

The numbers on this page, as JSONThe method card, as JSON