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Riverside, Ohio climate
Cfa Humid subtropical
Riverside has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 87°F, while the coldest is January averaging around 20°F at night. Precipitation is fairly even year-round, totalling about 42 inches. Light snow accumulates each winter (12 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 countsRiverside climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 40 | 51 | 64 | 75 | 84 | 87 | 86 | 79 | 66 | 52 | 41 |
| Avg temp (°F) | 28 | 31 | 41 | 53 | 64 | 73 | 76 | 75 | 68 | 55 | 43 | 33 |
| Avg low (°F) | 20 | 23 | 31 | 41 | 53 | 62 | 66 | 64 | 56 | 44 | 33 | 26 |
| Precipitation (in) | 3.2 | 2.4 | 3.5 | 4.5 | 4.4 | 4.4 | 4.0 | 3.1 | 3.0 | 3.0 | 3.0 | 3.1 |
| Snowfall (in) | 6.9 | 1.5 | 1.7 | — | — | — | — | — | — | — | 0.1 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 40 | 51 | 64 | 75 | 84 |
| Avg temp (°F) | 28 | 31 | 41 | 53 | 64 | 73 |
| Avg low (°F) | 20 | 23 | 31 | 41 | 53 | 62 |
| Precipitation (in) | 3.2 | 2.4 | 3.5 | 4.5 | 4.4 | 4.4 |
| Snowfall (in) | 6.9 | 1.5 | 1.7 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 86 | 79 | 66 | 52 | 41 |
| Avg temp (°F) | 76 | 75 | 68 | 55 | 43 | 33 |
| Avg low (°F) | 66 | 64 | 56 | 44 | 33 | 26 |
| Precipitation (in) | 4.0 | 3.1 | 3.0 | 3.0 | 3.0 | 3.1 |
| Snowfall (in) | — | — | — | — | 0.1 | 2.1 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 11 | 13 | 13 | 11 | 10 | 8 | 8 | 9 | 9 | 10 |
| Days with high ≥ 90°F (days) | — | — | — | — | 2 | 8 | 13 | 11 | 4 | 0.3 | — | — |
| Days with low ≤ 32°F (days) | 25 | 21 | 17 | 4 | 0.1 | — | — | — | — | 2 | 13 | 21 |
| Days with snowfall ≥ 1 in (days) | 2 | 0.7 | 0.6 | — | — | — | — | — | — | — | 0.1 | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 11 | 13 | 13 | 11 |
| Days with high ≥ 90°F (days) | — | — | — | — | 2 | 8 |
| Days with low ≤ 32°F (days) | 25 | 21 | 17 | 4 | 0.1 | — |
| Days with snowfall ≥ 1 in (days) | 2 | 0.7 | 0.6 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 8 | 8 | 9 | 9 | 10 |
| Days with high ≥ 90°F (days) | 13 | 11 | 4 | 0.3 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 2 | 13 | 21 |
| Days with snowfall ≥ 1 in (days) | — | — | — | — | 0.1 | 0.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 69 | 66 | 65 | 59 | 53 | 50 | 48 | 57 | 64 | 72 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 5 | 5 | 6 | 8 | 9 | 10 | 9 | 6 | 3 |
| Partly cloudy days (30–70%) | 9 | 9 | 10 | 9 | 10 | 12 | 13 | 12 | 10 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 20 | 17 | 17 | 16 | 16 | 12 | 11 | 9 | 9 | 13 | 15 | 19 |
| Relative humidity (%) | 87 | 84 | 81 | 77 | 78 | 78 | 76 | 72 | 69 | 73 | 79 | 85 |
| Wind speed (mph) | 8.6 | 8.3 | 8.3 | 8.1 | 6.6 | 5.5 | 4.8 | 4.6 | 5.3 | 6.5 | 7.4 | 7.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 69 | 66 | 65 | 59 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 5 | 5 | 6 |
| Partly cloudy days (30–70%) | 9 | 9 | 10 | 9 | 10 | 12 |
| Cloudy days (≥ 70%) | 20 | 17 | 17 | 16 | 16 | 12 |
| Relative humidity (%) | 87 | 84 | 81 | 77 | 78 | 78 |
| Wind speed (mph) | 8.6 | 8.3 | 8.3 | 8.1 | 6.6 | 5.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 50 | 48 | 57 | 64 | 72 |
| Clear days (≤ 30% cloud) | 8 | 9 | 10 | 9 | 6 | 3 |
| Partly cloudy days (30–70%) | 13 | 12 | 10 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 11 | 9 | 9 | 13 | 15 | 19 |
| Relative humidity (%) | 76 | 72 | 69 | 73 | 79 | 85 |
| Wind speed (mph) | 4.8 | 4.6 | 5.3 | 6.5 | 7.4 | 7.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Dayton Mcd (NOAA GHCN station USC00332067), about 6 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.