March weather forecastLongmont, CO
March
Weather in March
March marks the onset of spring in Longmont, with the weather transitioning from the chilly tones of winter to more temperate conditions. However, the city still experiences an occasional dusting of snow, though not as significant as the preceding months. This is reflected in the decrease in snowfall to 3.9" (99mm) distributed over an average of 4.9 days. March imparts an essence of rejuvenation, with the chilly winter breeze making way for the more welcoming spring air. Overall, this is a month signaling change, with emerging blossoms and warmer days ahead.Temperature
Longmont's weather in March shows a rise in the average high-temperature, moving up from February's wintry 40.3°F (4.6°C) to a fresh 51.4°F (10.8°C). During the nights in March, Longmont records a pronounced shift from the daytime warmth, with a consistent average temperature of 29.7°F (-1.3°C).Humidity
In Longmont, the average relative humidity in March is 55%.Rainfall
In Longmont, in March, during 7.7 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, in Longmont, there are 105.4 rainfall days, and 10.43" (265mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Longmont, in March, snow falls for 4.9 days, with typically accumulated 3.9" (99mm) of snow. Throughout the year, in Longmont, there are 37.1 snowfall days, and 26.73" (679mm) of snow is accumulated.Daylight
The average length of the day in March is 11h and 59min.On the first day of March, sunrise is at 6:32 am and sunset at 5:52 pm MST. On the last day of the month, sunrise is at 6:44 am and sunset at 7:24 pm MDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from MDT to MST.
Sunshine
In March, the average sunshine is 9h.UV index
In March, the average daily maximum UV index in Longmont is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 3 in March translates into these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Boost your sun resistance with garments that are densely woven yet spacious. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Longmont, CO
- Average high temperature in March: 51.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (39°F).
- Average low temperature in March: 29.7°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (19.9°F).
Average pressure in March
Longmont, CO
- Average pressure in March: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in March
Longmont, CO
- Average wind speed in March: 6.6mph
The windiest months (with the highest average wind speed) are March and April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.6mph).
Average humidity in March
Longmont, CO
- Average humidity in March: 55%
The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (42%).
Average rainfall in March
Longmont, CO
- Average rainfall in March: 0.83"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in March
Longmont, CO
- Average rainfall days in March: 7.7 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in March
Longmont, CO
- Average snowfall in March: 3.9"
The month with the highest snowfall is November (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
Longmont, CO
- Average snowfall days in March: 4.9 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in March /
Average sunshine in March
Longmont, CO
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in March: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in March
Longmont, CO
- Average sunshine days in March: 18.8 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in March
Longmont, CO
- Average UV index in March: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Longmont, CO
- Average cloud cover in March: 24
The months with the most cloud cover are April and May (Cloud cover 26).
The months with the least cloud cover are June and September (Cloud cover 16).
Average visibility in March
Longmont, CO
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
