Boise weather in March: Boise, Idaho: normal highs, lows, rain and records for March
Boise in March has a normal high of 56°F and a normal low of 35°F, a daily mean of 45°F, rising from 51°F on the 1st to 59°F by the 31st. Measurable precipitation falls on 10 days in a normal March, 1.33 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 2°C, 34 mm of precipitation and 3 cm of snow in March.
- 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 March?
The normal high is 56°F and the normal low 35°F, for a daily mean of 45.2°F. March is 7.7°F warmer than February and 5.7°F cooler than April. March is the 8th warmest month of the year in Boise and the 4th wettest. Across the month the normal high rises 8°F, from 51°F on March 1 to 59°F on March 31. From one year to the next March's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 43°F and 48°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 51°F | 32°F | 33% | 14% |
| March 8 | 54°F | 34°F | 33% | 15% |
| March 15 | 56°F | 35°F | 33% | 15% |
| March 22 | 57°F | 36°F | 33% | 16% |
| March 31 | 59°F | 37°F | 32% | 15% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 51°F | 32°F | 33% | 14% | 11 h 10 min |
| March 2 | 52°F | 32°F | 33% | 14% | 11 h 10 min |
| March 3 | 52°F | 32°F | 33% | 14% | 11 h 10 min |
| March 4 | 52°F | 33°F | 33% | 14% | 11 h 20 min |
| March 5 | 53°F | 33°F | 33% | 15% | 11 h 20 min |
| March 6 | 53°F | 33°F | 33% | 15% | 11 h 20 min |
| March 7 | 53°F | 33°F | 33% | 15% | 11 h 30 min |
| March 8 | 54°F | 34°F | 33% | 15% | 11 h 30 min |
| March 9 | 54°F | 34°F | 33% | 15% | 11 h 30 min |
| March 10 | 54°F | 34°F | 33% | 15% | 11 h 40 min |
| March 11 | 55°F | 34°F | 33% | 15% | 11 h 40 min |
| March 12 | 55°F | 34°F | 33% | 15% | 11 h 40 min |
| March 13 | 55°F | 35°F | 33% | 15% | 11 h 40 min |
| March 14 | 55°F | 35°F | 33% | 15% | 11 h 50 min |
| March 15 | 56°F | 35°F | 33% | 15% | 11 h 50 min |
| March 16 | 56°F | 35°F | 33% | 15% | 11 h 50 min |
| March 17 | 56°F | 35°F | 33% | 15% | 12 h |
| March 18 | 56°F | 36°F | 33% | 15% | 12 h |
| March 19 | 57°F | 36°F | 33% | 16% | 12 h |
| March 20 | 57°F | 36°F | 33% | 16% | 12 h 10 min |
| March 21 | 57°F | 36°F | 33% | 16% | 12 h 10 min |
| March 22 | 57°F | 36°F | 33% | 16% | 12 h 10 min |
| March 23 | 57°F | 36°F | 33% | 16% | 12 h 10 min |
| March 24 | 57°F | 36°F | 33% | 16% | 12 h 20 min |
| March 25 | 58°F | 37°F | 33% | 16% | 12 h 20 min |
| March 26 | 58°F | 37°F | 33% | 16% | 12 h 20 min |
| March 27 | 58°F | 37°F | 33% | 16% | 12 h 30 min |
| March 28 | 58°F | 37°F | 33% | 16% | 12 h 30 min |
| March 29 | 58°F | 37°F | 32% | 16% | 12 h 30 min |
| March 30 | 58°F | 37°F | 32% | 16% | 12 h 40 min |
| March 31 | 59°F | 37°F | 32% | 15% | 12 h 40 min |
- Normal high
- 56°FMarch average
- Normal low
- 35°FMarch average
- Precipitation
- 1.33 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 1.2 inmonth total
- Nights at 32°F or colder
- 11
- Daylight
- 11 h 10 min to 12 h 40 minMarch 1 to March 31
- Days at 70°F or more
- 2
- Sunshine
- 72%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 March?
On a given March day the chance of 0.01 inch or more is 33% on average, highest around March 1 (33%). In all, 1.33 in falls on 10 days of a normal March.
In a normal March in Boise, 11 nights fall to freezing and snowfall averages 1.2 inches.
Snow falls on 2 days in a normal March, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024131.
How humid and windy is Boise in March?
At 3 p.m. the normal temperature is 56°F with 36% relative humidity and a dew point of 29°F; at 6 a.m. it is 39°F with 69% humidity. The wind averages 8.7 mph, most often from the 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. | 39°F | 30°F | 69% | 6.9 mph | 58% |
| 9 a.m. | 44°F | 31°F | 60% | 8.0 mph | 57% |
| noon | 52°F | 30°F | 43% | 10.6 mph | 59% |
| 3 p.m. | 56°F | 29°F | 36% | 11.1 mph | 61% |
| 6 p.m. | 55°F | 29°F | 37% | 10.7 mph | 63% |
| 9 p.m. | 48°F | 30°F | 51% | 7.4 mph | 64% |
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 March in Boise?
The warmest March temperature on Boise's official record (since 1875) is 83°F, on March 20, 2026; the coldest is 5°F, on March 13, 1906. The wettest March brought 5.39 in (1904); the snowiest, 18.9 inches (1917).
The March mean against the 1991-2020 normal of 45.2°F: 2021 44.8°F (−0.4), 2022 45.6°F (+0.4), 2023 39.1°F (−6.1), 2024 44.5°F (−0.7), 2025 46.8°F (+1.6), 2026 50.4°F (+5.2). 3 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.8°F | −0.4°F | 0.95 in |
| 2022 | 45.6°F | +0.4°F | 0.39 in |
| 2023 | 39.1°F | −6.1°F | 2.47 in |
| 2024 | 44.5°F | −0.7°F | 2.03 in |
| 2025 | 46.8°F | +1.6°F | 0.83 in |
| 2026 | 50.4°F | +5.2°F | 0.79 in |
Source: records: ACIS, NWS threaded record BOIthr; recent months: ACIS, station USW00024131. Records and recent months use complete months only.
How does March in Boise compare across Idaho?
Across the 85 places PlainClimate covers in Idaho, March normal highs run from 34°F in Mullan to 61°F in Bruneau; Boise's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.