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United States of America

CASTLE TOWN, MONTANA


Home > North America > United States > Montana
Elevation: 1565 meters     Latitude: 46 32N     Longitude: 110 53W

WEATHER
 
CURRENT CONDITIONS

 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C5.7-5.2-3.60.44.99.613.918.317.612.16.3-0.7-5.5

Average High Temperature
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C12.90.32.56.812.217.321.827.627.120.813.84.9---

Average Low Temperature
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-1.6-10.9-9.6-6.1-2.41.869.18.23.5-1.1-6.4-11

Highest Recorded Temperature
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C37.21516.722.227.230.636.137.236.733.93020.614.4

Lowest Recorded Temperature
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-43.3-38.3-41.7-30.6-18.9-8.9-50.6-5-11.1-27.8-34.4-43.3

Average Number of Days Above 90F/32C
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days8.8---------------0.74.43.50.2---------

Average Number of Days Below 32F/0C
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days195.629.226.227.222.3111.4---0.45.518.224.729.4

Average Number of Days Below 0F/-17C
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days21.26.741.70.1---------------0.32.55.9



PRECIPITATION 
Average Precipitation
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm32611918315462392828211212

Average Number of Days With Precipitation
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days8854681112987756

Most Reported Precipitation in a Month
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm1422731511011291281428380483845

Least Reported Precipitation in a Month
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm---------1213156112---1

Most Precipitation Reported in a Day
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm651527.420.36550.857.753.93136.623.619.617

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days39113457543312

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days3------------111---------------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm99.11616.319.69.12.3---------2.35.610.717.3

Average Snow Cover
Years on Record: 21  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm---222---------------------25

Most Snow Reported in a Month
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm97.356.96197.353.319.1---------3329.237.953.6



DEGREE DAYS 
Heating Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days4777.8753.9612.8562.8406.1273.914068.375.6200370.6583.3730.6

Cooling Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days100---------------1042.8407.2---------

Growing Degree Days
Years on Record: 33  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days672.5---------------116.7256.6235.963.3---------



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.89.710.912.514.215.716.41614.61311.49.99.2



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.658.312.416.720.122.223.720.1159.75.74.3

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m26.234.36.27.68.99.49.286.74.83.22.6

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.18.712.615.317.418.419.321.12017.413.29.47.6

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.87.611.213.416.518.620.923.82116.712.58.26.8

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.658.312.416.720.122.223.720.1159.75.74.3

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m26.53.24.66.77.79.19.610.28.57.55.13.52.8

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m217.3101418.419.921.121.824.122.521.514.910.68.6

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m217.98.91317.420.623.425.727.824.421.614.49.58.1

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.54.37.210.214.817.218.818.218.112.18.64.93.6

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.92.63.95.77.58.89.397.96.24.42.92.3

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m212.57.210.812.215.115.716.316.217.913.511.67.76.2

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.16.19.29.712.813.51514.717.611.810.76.65.3




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