Lewistown, Montana, United States Climate

Weather: 10.75°C/51.35°F, Wind SW at 4.63 km/h, 55% Humidity, 0% Chance of rain

United States
(Photo by Stephanie Davison on Unsplash)
Contents

Lewistown Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Lewistown has a Humid continental, no dry season, warm summer climate (Classification: Dfb). The district’s yearly temperature is 7.18ºC (44.92ºF) and it is -5.46% lower than United States’s averages. Lewistown typically receives about 20.62 millimeters (0.81 inches) of precipitation and has 38.0 rainy days (10.41% of the time) annually.

CountryUnited States
CityMontana
Longitude-109.428238
Latitude47.0624732
Attitude/ElevationNonem (0ft)
Local timeSunday 18:52
Annual high temperature10.76ºC (51.37ºF)
Annual low temperature1.28ºC (34.3ºF)
Average annual precip.20.62mm (0.81in)
Warmest monthAugust (26.34ºC / 79.41ºF)
Coldest MonthFebruary (-13.64ºC / 7.45ºF)
Wettest MonthJune (46.95mm / 1.85in)
Driest MonthDecember (6.46mm / 0.25in)
Number of days with rainfall (≥ 1.0 mm)38.0 days (10.41%)
Days with no rain327.0 days (89.59%)
Humidity63.24%

Climate Lewistown: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)9.0(48.2)12.0(53.6)15.0(59.0)24.0(75.2)26.0(78.8)30.0(86.0)35.0(95.0)38.0(100.4)33.0(91.4)26.0(78.8)20.0(68.0)12.0(53.6)38.0(100.4)
Average high °C (°F)0.59(33.06)-4.71(23.52)2.81(37.06)8.18(46.72)15.41(59.74)19.97(67.95)25.59(78.06)26.34(79.41)19.7(67.46)8.98(48.16)4.19(39.54)2.05(35.69)10.76(51.37)
Daily mean °C (°F)-2.39(27.7)-8.06(17.49)-0.45(31.19)4.9(40.82)12.06(53.71)16.29(61.32)21.06(69.91)21.69(71.04)15.49(59.88)5.24(41.43)1.0(33.8)-0.61(30.9)7.18(44.92)
Average low °C (°F)-6.41(20.46)-13.64(7.45)-5.46(22.17)-0.89(30.4)5.35(41.63)9.19(48.54)12.95(55.31)13.45(56.21)8.6(47.48)-0.49(31.12)-3.28(26.1)-4.05(24.71)1.28(34.3)
Record low °C (°F)-25.0(-13.0)-26.0(-14.8)-31.0(-23.8)-20.0(-4.0)-6.0(21.2)2.0(35.6)6.0(42.8)3.0(37.4)-8.0(17.6)-19.0(-2.2)-17.0(1.4)-19.0(-2.2)-31.0(-23.8)
Average precipitation mm (inches)10.56(0.42)16.25(0.64)11.34(0.45)28.2(1.11)39.16(1.54)46.95(1.85)15.36(0.6)14.6(0.57)16.29(0.64)23.55(0.93)18.71(0.74)6.46(0.25)20.62(0.81)
Average precipitation days (≥ 1.0 mm)2.553.643.04.094.825.093.02.272.273.182.731.363.17
Average relative humidity (%)68.5178.2174.0268.6366.4763.8951.8344.8451.8362.7866.561.4363.24
Mean monthly sunshine hours6.818.3410.010.0613.4815.4215.3711.5611.019.737.376.6410.48

Climate Graph

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

Lewistown

Lewistown Temperature by Month

August
21.69°C | 71.04°F
July
21.06°C | 69.91°F
June
16.29°C | 61.32°F
September
15.49°C | 59.88°F
May
12.06°C | 53.71°F
October
5.24°C | 41.43°F
April
4.9°C | 40.82°F
November
1.0°C | 33.8°F
March
-0.45°C | 31.19°F
December
-0.61°C | 30.9°F
January
-2.39°C | 27.7°F
February
-8.06°C | 17.49°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature21.0°C (69.8°F)6.53°C (43.75°F)-10.0°C (14.0°F)
Avg Temperature16.0°C (60.8°F)3.1°C (37.58°F)-14.0°C (6.8°F)
Min Temperature11.0°C (51.8°F)-2.73°C (27.09°F)-20.0°C (-4.0°F)
Dew PointMaxAverageMin
Dew Point6.0°C (42.8°F)-3.43°C (25.83°F)-16.0°C (3.2°F)
PrecipitationMaxAverageMinSum
Precipitation32.3mm | 1.27in4.9mm | 0.19in0.0mm | 0in147.1mm | 5.79in
Snowdepth27.5mm | 1.08in3.04mm | 0.12in0.0mm | 0in91.30000000000001mm | 3.59in
WindMaxAverageMin
Wind26.0kmh | 16.16mph13.33kmh | 8.28mph6.0kmh | 3.73mph
Gust Wind37.0kmh | 22.99mph19.97kmh | 12.41mph9.0kmh | 5.59mph
Sea Level PressureMaxAverageMin
Sea Level Pressure32.3mb4.9mb0.0mb
Lewistown

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
April° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-04-01-10 | 14.0-11 | 12.29211 | 6.8430.18 | 102220.5 | 0.81
2020-04-02-14 | 6.8-16 | 3.2917 | 4.3530.42 | 10300.2 | 0.01
2020-04-03-5 | 23.0-9 | 15.8836 | 3.7330.12 | 10201.1 | 0.04
2020-04-04-1 | 30.2-6 | 21.27012 | 7.4629.85 | 10114.4 | 0.17
2020-04-055 | 41.0-4 | 24.86310 | 6.2129.74 | 10070.0 | 0.0
2020-04-068 | 46.4-1 | 30.26214 | 8.729.53 | 10001.8 | 0.07
2020-04-074 | 39.2-4 | 24.86326 | 16.1629.74 | 10073.4 | 0.13
2020-04-08-0 | 32.0-7 | 19.46814 | 8.730.27 | 10253.0 | 0.12
2020-04-095 | 41.0-5 | 23.0566 | 3.7330.12 | 10200.0 | 0.0
2020-04-106 | 42.80 | 32.06912 | 7.4629.8 | 10090.1 | 0.0
2020-04-11-5 | 23.0-5 | 23.09516 | 9.9430.15 | 102132.3 | 1.27
2020-04-12-10 | 14.0-12 | 10.48613 | 8.0830.45 | 10313.8 | 0.15
2020-04-13-9 | 15.8-11 | 12.28814 | 8.730.39 | 10294.9 | 0.19
2020-04-14-1 | 30.2-5 | 23.07915 | 9.3230.12 | 10201.4 | 0.06
2020-04-15-2 | 28.4-3 | 26.69215 | 9.3230.18 | 102216.8 | 0.66
2020-04-16-3 | 26.6-6 | 21.2859 | 5.5930.36 | 10284.6 | 0.18
2020-04-174 | 39.2-4 | 24.86715 | 9.3229.88 | 10120.0 | 0.0
2020-04-180 | 32.0-1 | 30.2926 | 3.7329.91 | 10137.5 | 0.3
2020-04-193 | 37.4-0 | 32.0868 | 4.9729.91 | 10135.4 | 0.21
2020-04-208 | 46.4-0 | 32.06712 | 7.4629.88 | 10120.0 | 0.0
2020-04-2111 | 51.81 | 33.86019 | 11.8129.8 | 10090.1 | 0.0
2020-04-2210 | 50.00 | 32.05618 | 11.1829.8 | 10090.1 | 0.0
2020-04-236 | 42.82 | 35.67915 | 9.3229.83 | 101010.7 | 0.42
2020-04-248 | 46.41 | 33.86915 | 9.3230.0 | 10162.9 | 0.11
2020-04-2511 | 51.8-0 | 32.05612 | 7.4630.0 | 10160.0 | 0.0
2020-04-2611 | 51.8-1 | 30.25120 | 12.4329.85 | 10110.0 | 0.0
2020-04-2712 | 53.6-1 | 30.24915 | 9.3229.8 | 10090.3 | 0.01
2020-04-289 | 48.2-2 | 28.45223 | 14.2930.0 | 10162.1 | 0.08
2020-04-2916 | 60.81 | 33.8439 | 5.5929.97 | 10150.0 | 0.0
2020-04-3016 | 60.86 | 42.86013 | 8.0829.71 | 100619.7 | 0.78

Lewistown 3 Year Historical Weather Data

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