Helena, Montana, United States Climate

Weather: 6.15°C/43.07°F, Wind SW at 3.6 km/h, 79% Humidity, 0.21% Chance of rain

United States
(Photo by eric diaz on Unsplash)
Contents

Helena Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Helena has a Humid continental, no dry season, warm summer climate (Classification: Dfb). The district’s yearly temperature is 6.1ºC (42.98ºF) and it is -6.54% lower than United States’s averages. Helena typically receives about 15.06 millimeters (0.59 inches) of precipitation and has 31.27 rainy days (8.57% of the time) annually.

CountryUnited States
CityMontana
Longitude-112.0391057
Latitude46.5891452
Attitude/ElevationNonem (0ft)
Local timeSunday 18:36
Annual high temperature10.69ºC (51.24ºF)
Annual low temperature-0.26ºC (31.53ºF)
Average annual precip.15.06mm (0.59in)
Warmest monthJuly (25.92ºC / 78.66ºF)
Coldest MonthFebruary (-12.29ºC / 9.88ºF)
Wettest MonthJune (36.91mm / 1.45in)
Driest MonthDecember (3.45mm / 0.14in)
Number of days with rainfall (≥ 1.0 mm)31.27 days (8.57%)
Days with no rain333.73 days (91.43%)
Humidity62.82%

Climate Helena: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)8.0(46.4)11.0(51.8)13.0(55.4)24.0(75.2)26.0(78.8)28.0(82.4)33.0(91.4)37.0(98.6)34.0(93.2)27.0(80.6)17.0(62.6)8.0(46.4)37.0(98.6)
Average high °C (°F)0.34(32.61)-3.59(25.54)3.06(37.51)8.81(47.86)15.53(59.95)19.9(67.82)25.92(78.66)25.87(78.57)19.73(67.51)8.81(47.86)3.38(38.08)0.52(32.94)10.69(51.24)
Daily mean °C (°F)-3.06(26.49)-7.11(19.2)-0.9(30.38)4.49(40.08)10.89(51.6)14.77(58.59)19.73(67.51)19.52(67.14)14.17(57.51)4.27(39.69)-0.68(30.78)-2.84(26.89)6.1(42.98)
Average low °C (°F)-6.83(19.71)-12.29(9.88)-6.44(20.41)-1.9(28.58)3.56(38.41)6.79(44.22)10.14(50.25)10.32(50.58)6.39(43.5)-1.47(29.35)-4.92(23.14)-6.43(20.43)-0.26(31.53)
Record low °C (°F)-23.0(-9.4)-25.0(-13.0)-32.0(-25.6)-17.0(1.4)-7.0(19.4)0.0(0)3.0(37.4)1.0(33.8)-10.0(14.0)-23.0(-9.4)-22.0(-7.6)-17.0(1.4)-32.0(-25.6)
Average precipitation mm (inches)7.85(0.31)18.77(0.74)10.9(0.43)21.8(0.86)18.98(0.75)36.91(1.45)11.34(0.45)11.64(0.46)12.59(0.5)17.71(0.7)8.75(0.34)3.45(0.14)15.06(0.59)
Average precipitation days (≥ 1.0 mm)2.273.822.453.823.454.182.181.821.732.911.820.822.61
Average relative humidity (%)73.9977.0172.6766.3262.1957.9347.8744.0551.3263.5368.2168.7362.82
Mean monthly sunshine hours7.128.6610.4910.3913.3815.4915.3811.3911.089.958.235.9910.63

Climate Graph

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

Helena

Helena Temperature by Month

July
19.73°C | 67.51°F
August
19.52°C | 67.14°F
June
14.77°C | 58.59°F
September
14.17°C | 57.51°F
May
10.89°C | 51.6°F
April
4.49°C | 40.08°F
October
4.27°C | 39.69°F
November
-0.68°C | 30.78°F
March
-0.9°C | 30.38°F
December
-2.84°C | 26.89°F
January
-3.06°C | 26.49°F
February
-7.11°C | 19.2°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature11.0°C (51.8°F)2.47°C (36.45°F)-12.0°C (10.4°F)
Avg Temperature7.0°C (44.6°F)-1.43°C (29.43°F)-13.0°C (8.6°F)
Min Temperature4.0°C (39.2°F)-5.47°C (22.15°F)-17.0°C (1.4°F)
Dew PointMaxAverageMin
Dew Point-0.0°C (0°F)-6.5°C (20.3°F)-15.0°C (5.0°F)
PrecipitationMaxAverageMinSum
Precipitation6.6mm | 0.26in1.02mm | 0.04in0.0mm | 0in30.5mm | 1.2in
Snowdepth5.6mm | 0.22in0.75mm | 0.03in0.0mm | 0in22.4mm | 0.88in
WindMaxAverageMin
Wind20.0kmh | 12.43mph7.43kmh | 4.62mph3.0kmh | 1.86mph
Gust Wind29.0kmh | 18.02mph12.37kmh | 7.69mph5.0kmh | 3.11mph
Sea Level PressureMaxAverageMin
Sea Level Pressure6.6mb1.02mb0.0mb
Helena

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
November° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-11-01-5 | 23.0-8 | 17.6795 | 3.1130.53 | 10340.4 | 0.02
2019-11-02-1 | 30.2-5 | 23.0745 | 3.1130.3 | 10260.0 | 0.0
2019-11-030 | 32.0-3 | 26.6764 | 2.4930.12 | 10200.6 | 0.02
2019-11-041 | 33.8-1 | 30.2873 | 1.8630.15 | 10212.2 | 0.09
2019-11-053 | 37.4-0 | 32.0827 | 4.3530.12 | 10200.1 | 0.0
2019-11-06-5 | 23.0-8 | 17.6777 | 4.3530.5 | 10330.6 | 0.02
2019-11-07-2 | 28.4-8 | 17.6675 | 3.1130.36 | 10280.0 | 0.0
2019-11-085 | 41.0-6 | 21.2487 | 4.3530.18 | 10220.0 | 0.0
2019-11-097 | 44.6-4 | 24.8509 | 5.5930.09 | 10190.0 | 0.0
2019-11-10-9 | 15.8-8 | 17.6859 | 5.5930.36 | 10286.6 | 0.26
2019-11-11-9 | 15.8-13 | 8.6786 | 3.7330.62 | 10370.2 | 0.01
2019-11-122 | 35.6-5 | 23.0657 | 4.3530.06 | 10180.0 | 0.0
2019-11-131 | 33.8-2 | 28.4836 | 3.7330.12 | 10200.2 | 0.01
2019-11-141 | 33.8-5 | 23.0686 | 3.7330.15 | 10210.0 | 0.0
2019-11-154 | 39.2-4 | 24.8576 | 3.7329.97 | 10150.0 | 0.0
2019-11-162 | 35.6-3 | 26.67312 | 7.4630.15 | 10210.3 | 0.01
2019-11-176 | 42.80 | 32.07011 | 6.8430.03 | 10170.1 | 0.0
2019-11-183 | 37.4-0 | 32.0757 | 4.3529.91 | 10130.1 | 0.0
2019-11-194 | 39.2-0 | 32.0795 | 3.1129.71 | 10066.3 | 0.25
2019-11-20-4 | 24.8-6 | 21.2847 | 4.3530.18 | 10220.7 | 0.03
2019-11-21-6 | 21.2-12 | 10.4675 | 3.1130.18 | 10220.0 | 0.0
2019-11-22-0 | 32.0-11 | 12.2495 | 3.1130.09 | 10190.0 | 0.0
2019-11-233 | 37.4-10 | 14.0418 | 4.9730.12 | 10200.0 | 0.0
2019-11-244 | 39.2-6 | 21.24820 | 12.4329.91 | 10130.1 | 0.0
2019-11-25-2 | 28.4-8 | 17.66410 | 6.2129.97 | 10150.7 | 0.03
2019-11-26-5 | 23.0-9 | 15.8734 | 2.4929.97 | 10150.0 | 0.0
2019-11-27-5 | 23.0-9 | 15.87914 | 8.729.91 | 10130.9 | 0.04
2019-11-28-12 | 10.4-13 | 8.69113 | 8.0830.15 | 10216.0 | 0.24
2019-11-29-13 | 8.6-15 | 5.0926 | 3.7330.09 | 10192.1 | 0.08
2019-11-30-11 | 12.2-13 | 8.6914 | 2.4930.27 | 10252.3 | 0.09

Helena 3 Year Historical Weather Data

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