Boise weather in February: Boise, Idaho: normal highs, lows, rain and records for February
Boise in February has a normal high of 46°F and a normal low of 29°F, a daily mean of 38°F, rising from 42°F on the 1st to 51°F by the 29th. Measurable precipitation falls on 9 days in a normal February, 1.00 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of −2°C, 25 mm of precipitation and 8 cm of snow in February.
- NOAA stationBoise Air Terminal
- Station IDUSW00024131
- Location43.57°N 116.24°W
- Elevation2,814 ft (858 m)
- From the center2 miles
- Population237,963
- Jan 39° 26°
- Feb 46° 29°
- Mar 56° 35°
- Apr 62° 40°
- May 72° 48°
- Jun 81° 54°
- Jul 93° 62°
- Aug 91° 61°
- Sep 80° 53°
- Oct 65° 42°
- Nov 49° 32°
- Dec 39° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Boise in February?
The normal high is 46°F and the normal low 29°F, for a daily mean of 37.5°F. February is 5.3°F warmer than January and 7.7°F cooler than March. February is the 10th warmest month of the year in Boise and the 7th wettest. Across the month the normal high rises 9°F, from 42°F on February 1 to 51°F on February 29. From one year to the next February's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Februarys in three average between 34°F and 41°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| February 1 | 42°F | 27°F | 34% | 15% |
| February 8 | 44°F | 28°F | 33% | 14% |
| February 15 | 46°F | 29°F | 33% | 14% |
| February 22 | 49°F | 30°F | 33% | 14% |
| February 28 | 51°F | 32°F | 33% | 14% |
Every day of February: normal high, low and chance of precipitation (warmest afternoon February 29, coldest night February 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| February 1 | 42°F | 27°F | 34% | 15% | 9 h 50 min |
| February 2 | 42°F | 27°F | 34% | 15% | 9 h 50 min |
| February 3 | 42°F | 27°F | 34% | 15% | 10 h |
| February 4 | 42°F | 27°F | 33% | 15% | 10 h |
| February 5 | 43°F | 27°F | 33% | 15% | 10 h |
| February 6 | 43°F | 28°F | 33% | 15% | 10 h |
| February 7 | 43°F | 28°F | 33% | 15% | 10 h 10 min |
| February 8 | 44°F | 28°F | 33% | 14% | 10 h 10 min |
| February 9 | 44°F | 28°F | 33% | 14% | 10 h 10 min |
| February 10 | 44°F | 28°F | 33% | 14% | 10 h 10 min |
| February 11 | 45°F | 28°F | 33% | 14% | 10 h 20 min |
| February 12 | 45°F | 28°F | 33% | 14% | 10 h 20 min |
| February 13 | 45°F | 29°F | 33% | 14% | 10 h 20 min |
| February 14 | 46°F | 29°F | 33% | 14% | 10 h 30 min |
| February 15 | 46°F | 29°F | 33% | 14% | 10 h 30 min |
| February 16 | 46°F | 29°F | 33% | 14% | 10 h 30 min |
| February 17 | 47°F | 29°F | 33% | 14% | 10 h 30 min |
| February 18 | 47°F | 30°F | 33% | 14% | 10 h 40 min |
| February 19 | 48°F | 30°F | 33% | 14% | 10 h 40 min |
| February 20 | 48°F | 30°F | 33% | 14% | 10 h 40 min |
| February 21 | 48°F | 30°F | 33% | 14% | 10 h 50 min |
| February 22 | 49°F | 30°F | 33% | 14% | 10 h 50 min |
| February 23 | 49°F | 31°F | 33% | 14% | 10 h 50 min |
| February 24 | 50°F | 31°F | 33% | 14% | 10 h 50 min |
| February 25 | 50°F | 31°F | 33% | 14% | 11 h |
| February 26 | 50°F | 31°F | 33% | 14% | 11 h |
| February 27 | 51°F | 31°F | 33% | 14% | 11 h |
| February 28 | 51°F | 32°F | 33% | 14% | 11 h 10 min |
| February 29 | 51°F | 32°F | 33% | 14% | 11 h 10 min |
- Normal high
- 46°FFebruary average
- Normal low
- 29°FFebruary average
- Precipitation
- 1.00 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 3.3 inmonth total
- Nights at 32°F or colder
- 20
- Daylight
- 9 h 50 min to 11 h 10 minFebruary 1 to February 28
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024131; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Boise in February?
On a given February day the chance of 0.01 inch or more is 33% on average, highest around February 1 (34%). In all, 1.00 in falls on 9 days of a normal February.
In a normal February in Boise, 20 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 3.3 inches.
Snow falls on 3 days in a normal February, and an inch or more covers the ground on 3 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024131.
How humid and windy is Boise in February?
At 3 p.m. the normal temperature is 47°F with 45% relative humidity and a dew point of 27°F; at 6 a.m. it is 33°F with 75% humidity. The wind averages 8.2 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 33°F | 26°F | 75% | 6.9 mph | 49% |
| 9 a.m. | 35°F | 27°F | 71% | 7.2 mph | 51% |
| noon | 43°F | 28°F | 54% | 9.5 mph | 58% |
| 3 p.m. | 47°F | 27°F | 45% | 10.2 mph | 56% |
| 6 p.m. | 45°F | 27°F | 48% | 9.4 mph | 56% |
| 9 p.m. | 39°F | 27°F | 62% | 7.3 mph | 60% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024131. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for February in Boise?
The warmest February temperature on Boise's official record (since 1875) is 71°F, on February 29, 1992; the coldest is −15°F, on February 5, 1989. The wettest February brought 3.71 in (2019); the snowiest, 25.2 inches (1949).
The February mean against the 1991-2020 normal of 37.5°F: 2021 35.1°F (−2.4), 2022 33.0°F (−4.5), 2023 35.1°F (−2.4), 2024 41.9°F (+4.4), 2025 35.2°F (−2.3), 2026 42.5°F (+5.0). 2 of 6 ran warmer than normal.
| February | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.1°F | −2.4°F | 1.62 in |
| 2022 | 33.0°F | −4.5°F | 0.08 in |
| 2023 | 35.1°F | −2.4°F | 0.42 in |
| 2024 | 41.9°F | +4.4°F | 2.24 in |
| 2025 | 35.2°F | −2.3°F | 3.07 in |
| 2026 | 42.5°F | +5.0°F | 1.16 in |
Source: records: ACIS, NWS threaded record BOIthr; recent months: ACIS, station USW00024131. Records and recent months use complete months only.
How does February in Boise compare across Idaho?
Across the 85 places PlainClimate covers in Idaho, February normal highs run from 28°F in Mullan to 51°F in Bruneau; Boise's is 46°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.