The year at a glance
Averages from 30 years of climate history, 1991-2020
| Harvey | Metric | Posen |
|---|---|---|
| 182 days | Sunny daysclear or partly cloudy skies | 180 days |
| 39 in | Precipitationper year | 39 in |
| 130 days | Wet daysrain or snow per year | 132 days |
| 31 in | Snowfallper year | 35 in |
| 17 days | Hot daysabove 90 °F | 18 days |
| 117 days | Freezing nightsat or below 32 °F | 114 days |
| 71% | Humidityaverage relative | 71% |
| 51 °F | Average temperatureyear round | 52 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvey high | 32 | 36 | 47 | 60 | 71 | 81 | 85 | 82 | 76 | 63 | 49 | 37 |
| Posen high | 32 | 36 | 47 | 60 | 71 | 81 | 85 | 83 | 76 | 63 | 49 | 37 |
| Harvey low | 17 | 20 | 30 | 40 | 51 | 61 | 66 | 64 | 57 | 44 | 33 | 23 |
| Posen low | 18 | 21 | 31 | 40 | 51 | 61 | 67 | 65 | 57 | 45 | 34 | 24 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvey | 2.3 | 2.0 | 2.9 | 4.4 | 4.6 | 4.3 | 3.9 | 3.8 | 3.0 | 3.2 | 2.7 | 2.2 |
| Posen | 2.4 | 2.1 | 2.8 | 4.5 | 4.4 | 4.0 | 3.6 | 3.8 | 3.0 | 3.3 | 2.8 | 2.4 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvey | 11 | 11 | 14 | 13 | 15 | 16 | 20 | 20 | 20 | 17 | 14 | 11 |
| Posen | 10 | 11 | 14 | 13 | 15 | 16 | 20 | 20 | 20 | 16 | 14 | 11 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Harvey vs another city
- Harvey vs Markham, IL
- Harvey vs Riverdale, IL
- Harvey vs South Holland, IL
- Harvey vs Hazel Crest, IL
- Harvey vs Dolton, IL
- Harvey vs New York, NY
- Harvey vs Los Angeles, CA
- Harvey vs Chicago, IL
- Harvey vs Houston, TX
- Harvey vs Phoenix, AZ
- Harvey vs Philadelphia, PA
Posen vs another city
- Posen vs Blue Island, IL
- Posen vs Midlothian, IL
- Posen vs Markham, IL
- Posen vs Riverdale, IL
- Posen vs Calumet Park, IL
- Posen vs New York, NY
- Posen vs Los Angeles, CA
- Posen vs Chicago, IL
- Posen vs Houston, TX
- Posen vs Phoenix, AZ
- Posen vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).