The year at a glance
Averages from 30 years of climate history, 1991-2020
| Alton | Metric | Penitas |
|---|---|---|
| 238 days | Sunny daysclear or partly cloudy skies | 243 days |
| 20 in | Precipitationper year | 20 in |
| 41 days | Wet daysrain or snow per year | 70 days |
| 0 in | Snowfallper year | 0 in |
| 175 days | Hot daysabove 90 °F | 178 days |
| 2 days | Freezing nightsat or below 32 °F | 2 days |
| 68% | Humidityaverage relative | 67% |
| 74 °F | Average temperatureyear round | 75 °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 |
| Penitas high | 71 | 75 | 81 | 86 | 91 | 96 | 96 | 98 | 93 | 88 | 79 | 72 |
| Alton low | 47 | 52 | 58 | 63 | 70 | 75 | 75 | 76 | 72 | 64 | 56 | 49 |
| Penitas low | 49 | 53 | 59 | 65 | 71 | 75 | 76 | 76 | 73 | 65 | 57 | 50 |
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 |
| Penitas | 0.9 | 0.9 | 1.3 | 1.7 | 2.1 | 1.9 | 2.0 | 1.4 | 3.4 | 2.1 | 1.3 | 1.1 |
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 |
| Penitas | 16 | 16 | 19 | 19 | 22 | 23 | 23 | 24 | 20 | 24 | 20 | 18 |
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 New York, NY
- Alton vs Los Angeles, CA
- Alton vs Chicago, IL
- Alton vs Houston, TX
- Alton vs Phoenix, AZ
- Alton vs Philadelphia, PA
Penitas vs another city
- Penitas vs Doffing, TX
- Penitas vs Palmview, TX
- Penitas vs Salida del Sol Estates, TX
- Penitas vs La Homa, TX
- Penitas vs Mission, TX
- Penitas vs New York, NY
- Penitas vs Los Angeles, CA
- Penitas vs Chicago, IL
- Penitas vs Houston, TX
- Penitas vs Phoenix, AZ
- Penitas 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).