October weather forecastHeron, MT
October
Weather in October
October, the same as September, is a cool autumn month in Heron, Montana, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 33.3°F (0.7°C).Temperature
In October, the average high-temperature decreases considerably from an enjoyable 67.8°F (19.9°C) in September to a cool 51.1°F (10.6°C). Heron experiences an average temperature drop to an icy 33.3°F (0.7°C) during October nights.Humidity
In October, the average relative humidity is 76%.Rainfall
In Heron, in October, it is raining for 15.6 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Heron, there are 161.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Heron, in October, during 1.6 snowfall days, 0.39" (10mm) of snow is typically accumulated. Throughout the year, there are 80.8 snowfall days, and 60" (1524mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 49min.On the first day of October, sunrise is at 7:44 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 6:26 pm MDT.
Sunshine
In October, the average sunshine in Heron is 5.9h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in October leads to these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Heron, MT
- Average high temperature in October: 51.1°F
The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in October: 33.3°F
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure in October
Heron, MT
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in October
Heron, MT
- Average wind speed in October: 3.8mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in October
Heron, MT
- Average humidity in October: 76%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (52%).
Average rainfall in October
Heron, MT
- Average rainfall in October: 2.48"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in October
Heron, MT
- Average rainfall days in October: 15.6 days
The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in October
Heron, MT
- Average snowfall in October: 0.39"
The month with the highest snowfall is January (15.87").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Heron, MT
- Average snowfall days in October: 1.6 days
The month with the highest number of snowfall days is December (19.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Heron, MT
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in October: 5h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in October
Heron, MT
- Average sunshine days in October: 14.3 days
The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is March (7.1 days).
Average UV index in October
Heron, MT
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in October
Heron, MT
- Average cloud cover in October: 42
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in October
Heron, MT
- Average visibility in October: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
