October weather forecastHarlowton, MT
October
Weather in October
October, the same as September, is another fresh autumn month in Harlowton, Montana, with an average temperature varying between 52.5°F (11.4°C) and 34.9°F (1.6°C).Temperature
In Harlowton, stepping into October signifies a significant temperature decrement, moving down from September's pleasant 68.5°F (20.3°C) to a cool 52.5°F (11.4°C). Harlowton experiences a mean temperature of 34.9°F (1.6°C) during October nights.Humidity
In Harlowton, the average relative humidity in October is 61%.Rainfall
In Harlowton, in October, during 10.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Harlowton, during the entire year, the rain falls for 128.6 days and collects up to 12.8" (325mm) of precipitation.Snowfall
Months with snowfall in Harlowton are January through May, September through December. In Harlowton, in October, snow falls for 4.3 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, there are 72.8 snowfall days, and 33.5" (851mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 53min.On the first day of October in Harlowton, sunrise is at 7:19 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 6:05 pm MDT.
Sunshine
In October, the average sunshine in Harlowton is 7h.UV index
The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Harlowton, MT
- Average high temperature in October: 52.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in October: 34.9°F
The months with the highest average low temperature are July and August (54.3°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).
Average pressure in October
Harlowton, MT
- Average pressure in October: 30.01"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Harlowton, MT
- Average wind speed in October: 9.5mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in October
Harlowton, MT
- Average humidity in October: 61%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (45%).
Average rainfall in October
Harlowton, MT
- Average rainfall in October: 0.63"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in October
Harlowton, MT
- Average rainfall days in October: 10.1 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and December (7.2 days).
Average snowfall in October
Harlowton, MT
- Average snowfall in October: 1.65"
The month with the highest snowfall is April (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Harlowton, MT
- Average snowfall days in October: 4.3 days
The month with the highest number of snowfall days is February (14.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Harlowton, MT
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 7h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in October
Harlowton, MT
- Average sunshine days in October: 16.8 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is April (9 days).
Average UV index in October
Harlowton, MT
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Harlowton, MT
- Average cloud cover in October: 25
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in October
Harlowton, MT
- Average visibility in October: 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).





