The year at a glance
Averages from 30 years of climate history, 1991-2020
| Alton | Metric | New York |
|---|---|---|
| 238 days | Sunny daysclear or partly cloudy skies | 202 days |
| 20 in | Precipitationper year | 44 in |
| 41 days | Wet daysrain or snow per year | 121 days |
| 0 in | Snowfallper year | 27 in |
| 175 days | Hot daysabove 90 °F | 16 days |
| 2 days | Freezing nightsat or below 32 °F | 65 days |
| 68% | Humidityaverage relative | 71% |
| 74 °F | Average temperatureyear round | 56 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alton high | 70 | 74 | 80 | 85 | 90 | 95 | 96 | 97 | 92 | 87 | 78 | 71 |
| New York high | 40 | 42 | 50 | 61 | 71 | 80 | 85 | 83 | 77 | 65 | 54 | 45 |
| Alton low | 47 | 52 | 58 | 63 | 70 | 75 | 75 | 76 | 72 | 64 | 56 | 49 |
| New York low | 28 | 29 | 36 | 45 | 55 | 64 | 71 | 69 | 63 | 52 | 42 | 34 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alton | 1.0 | 0.9 | 1.3 | 1.6 | 2.0 | 1.9 | 2.0 | 1.5 | 3.3 | 2.2 | 1.3 | 1.1 |
| New York | 3.2 | 3.0 | 4.1 | 3.6 | 3.3 | 3.9 | 4.0 | 4.0 | 3.7 | 3.8 | 3.0 | 3.9 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alton | 16 | 15 | 18 | 18 | 21 | 23 | 23 | 23 | 20 | 24 | 20 | 17 |
| New York | 17 | 16 | 17 | 15 | 15 | 15 | 18 | 18 | 18 | 19 | 17 | 16 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Alton vs another city
- Alton vs La Homa, TX
- Alton vs Doffing, TX
- Alton vs Palmview, TX
- Alton vs Mission, TX
- Alton vs McAllen, TX
- Alton vs Penitas, TX
- Alton vs Los Angeles, CA
- Alton vs Chicago, IL
- Alton vs Houston, TX
- Alton vs Phoenix, AZ
- Alton vs Philadelphia, PA
New York vs another city
- New York vs Hoboken, NJ
- New York vs Jersey City, NJ
- New York vs Union City, NJ
- New York vs Bayonne, NJ
- New York vs West New York, NJ
- New York vs Guttenberg, NJ
- New York vs Los Angeles, CA
- New York vs Chicago, IL
- New York vs Houston, TX
- New York vs Phoenix, AZ
- New York vs Philadelphia, PA
- New York vs San Antonio, TX
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).