Boise, ID weather in March
Boise is cool in March, with frequent rain: highs average 56°F and nights drop to about 35°F. Rain or snow falls on about 10 days. Snowfall averages about 1.2 in.
- Normal high
- 56°F
- Normal low
- 35°F
- Wet days
- 10
- 1.3 in total
- Snowfall
- 1.2 in
- snow on the ground 1 day
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 51°F | 59°F |
| Normal low | 32°F | 37°F |
| Chance of a wet day | 33% | 33% |
| Sunrise / sunset | 7:21 am / 6:33 pm | 7:27 am / 8:09 pm |
| Daylight | 11.2 h | 12.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical March day
- 6 am37°Fdew point 29°F
- 9 am41°Fdew point 30°F
- Noon49°Fdew point 30°F
- 3 pm53°Fdew point 28°F
- 6 pm52°Fdew point 28°F
- 9 pm45°Fdew point 30°F
NOAA hourly normals (local standard time) from Boise Air Terminal (4 mi away); average wind 9 mph; clear or few clouds in 59% of daytime hours, mostly cloudy or overcast in 34%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below11 of 31
- Snow on the groundsnow depth 1 in or more1 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain and snow in March
Normal precipitation is 1.3 in; a dry March brings about 0.6 in and a wet one about 1.9 in (25th and 75th percentiles). Days with half an inch or more are rare. Normal snowfall is 1.2 in, with about 1 day of an inch or more.
How March varies from year to year
- Warmest March, 1991-20201992: average high 63°F
- Coolest March1993: average high 50°F
- Wettest March2017: 2.9 in
- Driest March1992: 0.2 in
- Highest reading80°F (March 19, 1997)
- Lowest reading13°F (March 1, 1993)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 46°F | 56°F | 62°F |
| Normal low | 29°F | 35°F | 40°F |
| Wet days | 9 | 10 | 9 |
| Comfortable days | 0 | 4 | 10 |
| Daylight | 10.5 h | 11.9 h | 13.4 h |
Highs change by +10°F from February and +6°F into April.
Nearby alternatives in March
- Cooler: Sun Valley, ID93 mi · high 43°F · 8 wet days
How Boise ranks in March
- Normal high225th warmest of 378 cities; 1st of 2 in Idaho
- Wet days231st driest of 378
- Comfortable days226th most of 339
What to pack for Boise in March
- A warm jacket – lows near 35°F, highs near 56°F
- A rain jacket or umbrella – rain or snow on about 10 days
Heating and cooling
March has 614 heating degree days and 0 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How cold is Boise in March?
The normal high is 56°F and the normal low is 35°F. From 1991 to 2020 the coldest March reading was 13°F (March 1, 1993).
Does it rain a lot in Boise in March?
About 10 days in March have at least 0.01 in of precipitation, and the normal total is 1.3 in. The wettest March in 1991-2020 was in 2017 (2.9 in); the driest was in 1992 (0.2 in).
Does it snow in Boise in March?
Yes. Normal snowfall in March is 1.2 in, and snow covers the ground on about 1 day.
Is March a good time to visit Boise?
March ranks 6th of 12 months on our comfort score for Boise (54 out of 100). It has about 4 comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Boise Air Terminal (USW00024131), 3.7 mi SSW of the city center, 2,814 ft (114 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Boise Air Terminal/Gowen Fd Airport (726810-24131), 3.7 mi SSW of the city center, 2,823 ft (123 ft higher than the city). Hourly observations, 1991-2020.