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Reading, Pennsylvania climate
Cfa Humid subtropical
Reading has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 84°F, while the coldest is January averaging around 22°F at night. Precipitation is fairly even year-round, totalling about 46 inches. Winters bring significant snowfall (24 inches 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 countsReading climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 37 | 40 | 49 | 62 | 72 | 80 | 84 | 82 | 76 | 64 | 52 | 42 |
| Avg temp (°F) | 30 | 32 | 40 | 51 | 61 | 70 | 74 | 73 | 66 | 54 | 43 | 34 |
| Avg low (°F) | 22 | 23 | 31 | 40 | 51 | 60 | 64 | 63 | 55 | 44 | 34 | 27 |
| Precipitation (in) | 3.1 | 2.6 | 3.6 | 3.7 | 4.0 | 4.5 | 4.9 | 4.6 | 4.6 | 4.1 | 3.2 | 3.6 |
| Snowfall (in) | 6.8 | 7.8 | 4.2 | 0.4 | — | — | — | — | — | 0.3 | 0.5 | 4.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 37 | 40 | 49 | 62 | 72 | 80 |
| Avg temp (°F) | 30 | 32 | 40 | 51 | 61 | 70 |
| Avg low (°F) | 22 | 23 | 31 | 40 | 51 | 60 |
| Precipitation (in) | 3.1 | 2.6 | 3.6 | 3.7 | 4.0 | 4.5 |
| Snowfall (in) | 6.8 | 7.8 | 4.2 | 0.4 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 82 | 76 | 64 | 52 | 42 |
| Avg temp (°F) | 74 | 73 | 66 | 54 | 43 | 34 |
| Avg low (°F) | 64 | 63 | 55 | 44 | 34 | 27 |
| Precipitation (in) | 4.9 | 4.6 | 4.6 | 4.1 | 3.2 | 3.6 |
| Snowfall (in) | — | — | — | 0.3 | 0.5 | 4.0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 12 | 13 | 11 | 11 | 10 | 9 | 10 | 9 | 10 |
| Days with high ≥ 90°F (days) | — | — | — | 0.1 | 0.3 | 2 | 6 | 3 | 0.8 | 0.0 | — | — |
| Days with low ≤ 32°F (days) | 27 | 24 | 20 | 6 | 0.4 | — | — | — | — | 3 | 15 | 24 |
| Days with snowfall ≥ 1 in (days) | 2 | 2 | 1 | 0.1 | — | — | — | — | — | 0.0 | 0.2 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 12 | 13 | 11 |
| Days with high ≥ 90°F (days) | — | — | — | 0.1 | 0.3 | 2 |
| Days with low ≤ 32°F (days) | 27 | 24 | 20 | 6 | 0.4 | — |
| Days with snowfall ≥ 1 in (days) | 2 | 2 | 1 | 0.1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 9 | 10 | 9 | 10 |
| Days with high ≥ 90°F (days) | 6 | 3 | 0.8 | 0.0 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 3 | 15 | 24 |
| Days with snowfall ≥ 1 in (days) | — | — | — | 0.0 | 0.2 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 67 | 66 | 65 | 65 | 61 | 57 | 57 | 57 | 59 | 64 | 69 |
| Clear days (≤ 30% cloud) | 3 | 4 | 5 | 6 | 5 | 5 | 7 | 7 | 8 | 7 | 5 | 3 |
| Partly cloudy days (30–70%) | 11 | 10 | 10 | 8 | 11 | 12 | 12 | 12 | 10 | 10 | 10 | 10 |
| Cloudy days (≥ 70%) | 16 | 15 | 16 | 16 | 15 | 13 | 11 | 12 | 12 | 13 | 15 | 17 |
| Relative humidity (%) | 87 | 86 | 82 | 78 | 78 | 76 | 71 | 71 | 72 | 78 | 82 | 87 |
| Wind speed (mph) | 1.8 | 2.0 | 1.7 | 1.0 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 1.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 67 | 66 | 65 | 65 | 61 |
| Clear days (≤ 30% cloud) | 3 | 4 | 5 | 6 | 5 | 5 |
| Partly cloudy days (30–70%) | 11 | 10 | 10 | 8 | 11 | 12 |
| Cloudy days (≥ 70%) | 16 | 15 | 16 | 16 | 15 | 13 |
| Relative humidity (%) | 87 | 86 | 82 | 78 | 78 | 76 |
| Wind speed (mph) | 1.8 | 2.0 | 1.7 | 1.0 | 0.6 | 0.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 57 | 57 | 59 | 64 | 69 |
| Clear days (≤ 30% cloud) | 7 | 7 | 8 | 7 | 5 | 3 |
| Partly cloudy days (30–70%) | 12 | 12 | 10 | 10 | 10 | 10 |
| Cloudy days (≥ 70%) | 11 | 12 | 12 | 13 | 15 | 17 |
| Relative humidity (%) | 71 | 71 | 72 | 78 | 82 | 87 |
| Wind speed (mph) | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 1.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Lebanon 2 W (NOAA GHCN station USC00364896), about 45 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.