ID
Idaho Falls picks up around 27 more inches of snow each winter.
Nampa endures about 31 more days above 90 °F each year. Nampa sees rain or snow on roughly 36 fewer days each year.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Idaho Falls | Metric | Nampa |
|---|---|---|
| 224 days | Sunny daysclear or partly cloudy skies | 239 days |
| 15 in | Precipitationper year | 11 in |
| 106 days | Wet daysrain or snow per year | 70 days |
| 37 in | Snowfallper year | 10 in |
| 27 days | Hot daysabove 90 °F | 58 days |
| 170 days | Freezing nightsat or below 32 °F | 133 days |
| 56% | Humidityaverage relative | 51% |
| 46 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Idaho Falls high | 30 | 35 | 48 | 58 | 67 | 76 | 86 | 85 | 75 | 59 | 43 | 31 |
| Nampa high | 40 | 47 | 57 | 64 | 74 | 83 | 93 | 92 | 81 | 67 | 51 | 40 |
| Idaho Falls low | 15 | 19 | 27 | 33 | 41 | 47 | 53 | 51 | 44 | 33 | 24 | 16 |
| Nampa low | 23 | 26 | 32 | 36 | 44 | 51 | 57 | 56 | 47 | 37 | 28 | 23 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Idaho Falls | 1.4 | 1.1 | 1.4 | 1.8 | 2.1 | 1.2 | 0.5 | 0.5 | 1.0 | 1.3 | 1.2 | 1.5 |
| Nampa | 1.6 | 1.0 | 1.2 | 1.1 | 1.1 | 0.6 | 0.1 | 0.1 | 0.4 | 0.8 | 1.2 | 1.6 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Idaho Falls | 12 | 13 | 15 | 15 | 18 | 23 | 27 | 27 | 24 | 21 | 16 | 12 |
| Nampa | 14 | 14 | 15 | 17 | 20 | 23 | 29 | 28 | 26 | 23 | 16 | 14 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Idaho Falls vs another city
- Idaho Falls vs Ammon, ID
- Idaho Falls vs Rigby, ID
- Idaho Falls vs Blackfoot, ID
- Idaho Falls vs Rexburg, ID
- Idaho Falls vs Chubbuck, ID
- Idaho Falls vs Pocatello, ID
- Idaho Falls vs New York, NY
- Idaho Falls vs Los Angeles, CA
- Idaho Falls vs Chicago, IL
- Idaho Falls vs Houston, TX
- Idaho Falls vs Phoenix, AZ
- Idaho Falls vs Philadelphia, PA
Nampa vs another city
- Nampa vs Caldwell, ID
- Nampa vs Meridian, ID
- Nampa vs Kuna, ID
- Nampa vs Middleton, ID
- Nampa vs Star, ID
- Nampa vs Garden City, ID
- Nampa vs New York, NY
- Nampa vs Los Angeles, CA
- Nampa vs Chicago, IL
- Nampa vs Houston, TX
- Nampa vs Phoenix, AZ
- Nampa 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).