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Siedlce, Poland climate
Cfb Oceanic / temperate
Siedlce has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 77°F, while the coldest is January averaging around 23°F at night. Around 22 inches of precipitation falls each year, peaking in June (2.9 inches) and easing off in February (1.0 inches). At latitude 52°N, day length swings from 7.5 hours in midwinter to 16.5 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsSiedlce climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 33 | 35 | 44 | 57 | 67 | 73 | 77 | 76 | 66 | 55 | 43 | 35 |
| Avg temp (°F) | 28 | 30 | 37 | 47 | 56 | 62 | 66 | 65 | 56 | 47 | 38 | 31 |
| Avg low (°F) | 23 | 24 | 29 | 37 | 45 | 51 | 55 | 54 | 46 | 39 | 33 | 26 |
| Precipitation (in) | 1.2 | 1.0 | 1.2 | 1.5 | 2.6 | 2.9 | 2.7 | 2.7 | 2.0 | 1.7 | 1.3 | 1.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 33 | 35 | 44 | 57 | 67 | 73 |
| Avg temp (°F) | 28 | 30 | 37 | 47 | 56 | 62 |
| Avg low (°F) | 23 | 24 | 29 | 37 | 45 | 51 |
| Precipitation (in) | 1.2 | 1.0 | 1.2 | 1.5 | 2.6 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 76 | 66 | 55 | 43 | 35 |
| Avg temp (°F) | 66 | 65 | 56 | 47 | 38 | 31 |
| Avg low (°F) | 55 | 54 | 46 | 39 | 33 | 26 |
| Precipitation (in) | 2.7 | 2.7 | 2.0 | 1.7 | 1.3 | 1.4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 12 | 11 | 10 | 12 | 12 | 12 | 10 | 10 | 10 | 11 | 13 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 0.2 | 1 | 1 | 0.0 | — | — | — |
| Days with low ≤ 32°F (days) | 19 | 18 | 16 | 8 | 1 | — | — | — | 0.6 | 5 | 11 | 18 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 12 | 11 | 10 | 12 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 0.2 |
| Days with low ≤ 32°F (days) | 19 | 18 | 16 | 8 | 1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 10 | 10 | 11 | 13 |
| Days with high ≥ 90°F (days) | 1 | 1 | 0.0 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | 0.6 | 5 | 11 | 18 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 76 | 70 | 65 | 64 | 64 | 64 | 61 | 64 | 70 | 78 | 75 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 5 | 5 | 5 | 4 | 6 | 5 | 4 | 2 | 3 |
| Partly cloudy days (30–70%) | 7 | 7 | 8 | 9 | 11 | 11 | 11 | 12 | 10 | 8 | 6 | 7 |
| Cloudy days (≥ 70%) | 21 | 19 | 19 | 16 | 15 | 15 | 15 | 13 | 15 | 19 | 22 | 21 |
| Relative humidity (%) | 95 | 93 | 86 | 79 | 75 | 70 | 67 | 65 | 73 | 83 | 92 | 95 |
| Wind speed (mph) | 8.2 | 8.1 | 7.8 | 6.6 | 6.2 | 6.0 | 5.9 | 5.6 | 6.3 | 7.0 | 7.3 | 7.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 76 | 70 | 65 | 64 | 64 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 5 | 5 | 5 |
| Partly cloudy days (30–70%) | 7 | 7 | 8 | 9 | 11 | 11 |
| Cloudy days (≥ 70%) | 21 | 19 | 19 | 16 | 15 | 15 |
| Relative humidity (%) | 95 | 93 | 86 | 79 | 75 | 70 |
| Wind speed (mph) | 8.2 | 8.1 | 7.8 | 6.6 | 6.2 | 6.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 61 | 64 | 70 | 78 | 75 |
| Clear days (≤ 30% cloud) | 4 | 6 | 5 | 4 | 2 | 3 |
| Partly cloudy days (30–70%) | 11 | 12 | 10 | 8 | 6 | 7 |
| Cloudy days (≥ 70%) | 15 | 13 | 15 | 19 | 22 | 21 |
| Relative humidity (%) | 67 | 65 | 73 | 83 | 92 | 95 |
| Wind speed (mph) | 5.9 | 5.6 | 6.3 | 7.0 | 7.3 | 7.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Siedlce, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.