Boulder, Colorado, United States Climate

Weather: 5.45°C/41.81°F, Wind SW at 4.63 km/h, 58% Humidity, 0% Chance of rain

United States
(Photo by Lucas Ludwig on Unsplash)

Boulder Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Boulder has a Mid-latitude steppe climate (Classification: BSk). The district’s yearly temperature is 8.87ºC (47.97ºF) and it is -3.77% lower than United States’s averages. Boulder typically receives about 20.42 millimeters (0.8 inches) of precipitation and has 33.37 rainy days (9.14% of the time) annually.

CountryUnited States
CityColorado
Longitude-105.2705456
Latitude40.0149856
Attitude/ElevationNonem (0ft)
Local timeFriday 10:59
Annual high temperature12.53ºC (54.55ºF)
Annual low temperature2.73ºC (36.91ºF)
Average annual precip.20.42mm (0.8in)
Warmest monthJuly (25.69ºC / 78.24ºF)
Coldest MonthFebruary (-8.36ºC / 16.95ºF)
Wettest MonthMay (49.45mm / 1.95in)
Driest MonthDecember (5.43mm / 0.21in)
Number of days with rainfall (≥ 1.0 mm)33.37 days (9.14%)
Days with no rain331.63 days (90.86%)
Humidity51.81%

Climate Boulder: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)15.0(59.0)16.0(60.8)19.0(66.2)24.0(75.2)27.0(80.6)30.0(86.0)33.0(91.4)32.0(89.6)34.0(93.2)26.0(78.8)20.0(68.0)15.0(59.0)34.0(93.2)
Average high °C (°F)3.31(37.96)0.35(32.63)6.08(42.94)10.67(51.21)15.68(60.22)22.59(72.66)25.69(78.24)25.35(77.63)21.77(71.19)11.05(51.89)6.1(42.98)1.75(35.15)12.53(54.55)
Daily mean °C (°F)-0.87(30.43)-3.01(26.58)2.81(37.06)7.18(44.92)12.41(54.34)18.91(66.04)22.06(71.71)21.9(71.42)17.77(63.99)6.73(44.11)2.21(35.98)-1.7(28.94)8.87(47.97)
Average low °C (°F)-6.26(20.73)-8.36(16.95)-2.61(27.3)0.68(33.22)5.85(42.53)11.66(52.99)15.0(59.0)14.56(58.21)11.11(52.0)0.6(33.08)-3.06(26.49)-6.46(20.37)2.73(36.91)
Record low °C (°F)-21.0(-5.8)-20.0(-4.0)-21.0(-5.8)-12.0(10.4)-5.0(23.0)2.0(35.6)8.0(46.4)9.0(48.2)-10.0(14.0)-23.0(-9.4)-14.0(6.8)-16.0(3.2)-23.0(-9.4)
Average precipitation mm (inches)7.11(0.28)14.92(0.59)21.98(0.87)19.67(0.77)49.45(1.95)30.38(1.2)32.52(1.28)19.47(0.77)16.25(0.64)15.65(0.62)12.22(0.48)5.43(0.21)20.42(0.8)
Average precipitation days (≥ 1.0 mm)1.02.732.823.184.643.914.733.361.912.451.551.092.78
Average relative humidity (%)54.9265.9660.0355.5256.5144.5645.4441.6939.4150.0552.9254.751.81
Mean monthly sunshine hours8.839.5410.5210.5913.3514.1614.2611.4411.3910.448.117.8810.88

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Boulder in recent years.

Boulder

Boulder Temperature by Month

July
22.06°C | 71.71°F
August
21.9°C | 71.42°F
June
18.91°C | 66.04°F
September
17.77°C | 63.99°F
May
12.41°C | 54.34°F
April
7.18°C | 44.92°F
October
6.73°C | 44.11°F
March
2.81°C | 37.06°F
November
2.21°C | 35.98°F
January
-0.87°C | 30.43°F
December
-1.7°C | 28.94°F
February
-3.01°C | 26.58°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature17.0°C (62.6°F)6.52°C (43.74°F)-5.0°C (23.0°F)
Avg Temperature11.0°C (51.8°F)3.23°C (37.81°F)-6.0°C (21.2°F)
Min Temperature4.0°C (39.2°F)-2.45°C (27.59°F)-10.0°C (14.0°F)
Dew PointMaxAverageMin
Dew Point-1.0°C (30.2°F)-7.68°C (18.18°F)-18.0°C (-0.4°F)
PrecipitationMaxAverageMinSum
Precipitation13.0mm | 0.51in1.87mm | 0.07in0.0mm | 0in58.0mm | 2.28in
Snowdepth9.4mm | 0.37in0.9mm | 0.04in0.0mm | 0in27.8mm | 1.09in
WindMaxAverageMin
Wind34.0kmh | 21.13mph11.06kmh | 6.87mph5.0kmh | 3.11mph
Gust Wind43.0kmh | 26.72mph17.23kmh | 10.71mph7.0kmh | 4.35mph
Sea Level PressureMaxAverageMin
Sea Level Pressure13.0mb1.87mb0.0mb
Boulder

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
March° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-03-010 | 32.0-8 | 17.6597 | 4.3530.09 | 10190.0 | 0.0
2018-03-026 | 42.8-8 | 17.64212 | 7.4629.91 | 10130.0 | 0.0
2018-03-037 | 44.6-8 | 17.63810 | 6.2129.83 | 10100.0 | 0.0
2018-03-047 | 44.6-8 | 17.63817 | 10.5629.71 | 10060.2 | 0.01
2018-03-05-6 | 21.2-18 | -0.43834 | 21.1330.18 | 10220.2 | 0.01
2018-03-06-4 | 24.8-17 | 1.43911 | 6.8430.33 | 10270.1 | 0.0
2018-03-07-1 | 30.2-16 | 3.2366 | 3.7330.24 | 10240.0 | 0.0
2018-03-083 | 37.4-12 | 10.43512 | 7.4630.03 | 10170.0 | 0.0
2018-03-098 | 46.4-6 | 21.24120 | 12.4329.85 | 10110.0 | 0.0
2018-03-105 | 41.0-6 | 21.25010 | 6.2129.97 | 10150.4 | 0.02
2018-03-111 | 33.8-12 | 10.4435 | 3.1130.3 | 10260.0 | 0.0
2018-03-123 | 37.4-11 | 12.2415 | 3.1130.21 | 10230.3 | 0.01
2018-03-132 | 35.6-8 | 17.6506 | 3.7330.21 | 10230.1 | 0.0
2018-03-147 | 44.6-6 | 21.2456 | 3.7329.91 | 10130.0 | 0.0
2018-03-158 | 46.4-2 | 28.45311 | 6.8429.56 | 10015.5 | 0.22
2018-03-162 | 35.6-7 | 19.45320 | 12.4329.71 | 10063.0 | 0.12
2018-03-174 | 39.2-10 | 14.0385 | 3.1129.83 | 10100.4 | 0.02
2018-03-181 | 33.8-8 | 17.65612 | 7.4629.68 | 100513.0 | 0.51
2018-03-19-3 | 26.6-7 | 19.4746 | 3.7330.06 | 101810.9 | 0.43
2018-03-20-1 | 30.2-10 | 14.05817 | 10.5630.06 | 10180.0 | 0.0
2018-03-214 | 39.2-6 | 21.2569 | 5.5930.03 | 10170.0 | 0.0
2018-03-2211 | 51.8-1 | 30.2539 | 5.5930.0 | 10160.1 | 0.0
2018-03-238 | 46.4-3 | 26.65021 | 13.0529.8 | 10090.0 | 0.0
2018-03-2411 | 51.8-5 | 23.0446 | 3.7329.88 | 10120.0 | 0.0
2018-03-257 | 44.6-6 | 21.24412 | 7.4629.68 | 10051.6 | 0.06
2018-03-262 | 35.6-4 | 24.8707 | 4.3529.85 | 10117.9 | 0.31
2018-03-27-1 | 30.2-4 | 24.8837 | 4.3530.12 | 102011.3 | 0.44
2018-03-280 | 32.0-4 | 24.8748 | 4.9729.97 | 10152.2 | 0.09
2018-03-29-0 | 32.0-7 | 19.4709 | 5.5930.12 | 10200.0 | 0.0
2018-03-305 | 41.0-6 | 21.25615 | 9.3230.09 | 10190.0 | 0.0
2018-03-314 | 39.2-4 | 24.8598 | 4.9730.0 | 10160.8 | 0.03

Comments (0)

  • Latest first
  • Highest rated
Be the first to comment on this page