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Clay, New York climate
Dfa Hot-summer humid continental
Clay has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −9°C at night. Precipitation is fairly even year-round, totalling about 1013 mm. Snowfall is heavy (325 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 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 countsClay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 1 | 6 | 14 | 21 | 25 | 28 | 27 | 23 | 16 | 9 | 3 |
| Avg temp (°C) | −4 | −4 | 1 | 8 | 15 | 19 | 22 | 21 | 17 | 11 | 5 | −1 |
| Avg low (°C) | −9 | −8 | −4 | 2 | 9 | 14 | 17 | 16 | 12 | 6 | 0 | −5 |
| Precipitation (mm) | 66 | 62 | 77 | 88 | 87 | 90 | 98 | 94 | 86 | 99 | 82 | 83 |
| Snowfall (cm) | 86 | 77 | 50 | 8 | 0 | — | — | — | — | 1 | 25 | 78 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 1 | 6 | 14 | 21 | 25 |
| Avg temp (°C) | −4 | −4 | 1 | 8 | 15 | 19 |
| Avg low (°C) | −9 | −8 | −4 | 2 | 9 | 14 |
| Precipitation (mm) | 66 | 62 | 77 | 88 | 87 | 90 |
| Snowfall (cm) | 86 | 77 | 50 | 8 | 0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 23 | 16 | 9 | 3 |
| Avg temp (°C) | 22 | 21 | 17 | 11 | 5 | −1 |
| Avg low (°C) | 17 | 16 | 12 | 6 | 0 | −5 |
| Precipitation (mm) | 98 | 94 | 86 | 99 | 82 | 83 |
| Snowfall (cm) | — | — | — | 1 | 25 | 78 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 19 | 17 | 15 | 15 | 13 | 12 | 12 | 11 | 11 | 15 | 16 | 18 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.5 | 2 | 4 | 2 | 1.0 | — | — | — |
| Days with low ≤ 0°C (days) | 28 | 26 | 24 | 11 | 0.5 | — | — | — | 0.1 | 4 | 16 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | 9 | 8 | 5 | 0.9 | 0.0 | — | — | — | — | 0.1 | 3 | 8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 19 | 17 | 15 | 15 | 13 | 12 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.5 | 2 |
| Days with low ≤ 0°C (days) | 28 | 26 | 24 | 11 | 0.5 | — |
| Days with snowfall ≥ 2.5 cm (days) | 9 | 8 | 5 | 0.9 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 11 | 15 | 16 | 18 |
| Days with high ≥ 32°C (days) | 4 | 2 | 1.0 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.1 | 4 | 16 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.1 | 3 | 8 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 79 | 77 | 78 | 79 | 77 | 71 | 68 | 67 | 72 | 79 | 83 |
| Clear days (≤ 30% cloud) | 0.3 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 4 | 3 | 1 | 0.6 |
| Partly cloudy days (30–70%) | 5 | 6 | 8 | 7 | 7 | 8 | 10 | 11 | 10 | 8 | 7 | 5 |
| Cloudy days (≥ 70%) | 25 | 21 | 21 | 21 | 22 | 20 | 18 | 17 | 16 | 20 | 22 | 25 |
| Relative humidity (%) | 92 | 91 | 86 | 80 | 77 | 75 | 71 | 71 | 73 | 78 | 84 | 90 |
| Wind speed (km/h) | 5.1 | 5.8 | 4.2 | 2.3 | 1.5 | 1.4 | 1.4 | 1.4 | 1.5 | 1.5 | 1.7 | 2.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 79 | 77 | 78 | 79 | 77 |
| Clear days (≤ 30% cloud) | 0.3 | 1 | 2 | 2 | 2 | 2 |
| Partly cloudy days (30–70%) | 5 | 6 | 8 | 7 | 7 | 8 |
| Cloudy days (≥ 70%) | 25 | 21 | 21 | 21 | 22 | 20 |
| Relative humidity (%) | 92 | 91 | 86 | 80 | 77 | 75 |
| Wind speed (km/h) | 5.1 | 5.8 | 4.2 | 2.3 | 1.5 | 1.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 68 | 67 | 72 | 79 | 83 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 3 | 1 | 0.6 |
| Partly cloudy days (30–70%) | 10 | 11 | 10 | 8 | 7 | 5 |
| Cloudy days (≥ 70%) | 18 | 17 | 16 | 20 | 22 | 25 |
| Relative humidity (%) | 71 | 71 | 73 | 78 | 84 | 90 |
| Wind speed (km/h) | 1.4 | 1.4 | 1.5 | 1.5 | 1.7 | 2.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Syracuse Hancock Intl AP (NOAA GHCN station USW00014771), about 10 km from the city centre.
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.