October weather forecastGranby, CO
October
Weather in October
The weather in October takes a leap towards the colder side, sharply contrasting the warmer preceding month. The gushing wind speed marks a decent escalation, in addition to the rising cloud coverage, hinting at the approaching winter. Correspondingly, the snowfall noticeably increases while the temperature ceases to decline, solidifying the onset of a colder climate. Despite the chilly beginnings, the city manages to maintain longer daylight hours and ensures substantial hours of sunshine. Thus, October unequivocally transforms the city into a winter wonderland.Temperature
Granby's transition into October is marked by a distinct drop in the average high-temperature, reducing from a comfortable 64.4°F (18°C) in September to a chilly 47.8°F (8.8°C). Despite the hot October days, Granby's nights see an average temperature plunge to a freezing cold 25.5°F (-3.6°C).Humidity
The average relative humidity in October is 62%.Rainfall
In Granby, in October, during 4.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 96.3 rainfall days, and 11.54" (293mm) of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall. In Granby, during October, snow falls for 9 days and regularly aggregates up to 5.67" (144mm) of snow. In Granby, during the entire year, snow falls for 110.7 days and aggregates up to 59.88" (1521mm) of snow.Daylight
The average length of the day in October is 11h and 8min.On the first day of October, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 6:01 pm MDT.
Sunshine
In October, the average sunshine is 7.2h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 2 in October interprets into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Granby, CO
- Average high temperature in October: 47.8°F
The warmest month (with the highest average high temperature) is July (72.3°F).
The month with the lowest average high temperature is December (24.6°F).
- Average low temperature in October: 25.5°F
The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in October
Granby, CO
- 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 April, May and June (29.93"Hg).
Average wind speed in October
Granby, CO
- Average wind speed in October: 6.2mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in October
Granby, CO
- Average humidity in October: 62%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (49%).
Average rainfall in October
Granby, CO
- Average rainfall in October: 0.79"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in October
Granby, CO
- Average rainfall days in October: 4.9 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is October (4.9 days).
Average snowfall in October
Granby, CO
- Average snowfall in October: 5.67"
The month with the highest snowfall is April (10.94").
The month with the least snowfall is July (0").
Average snowfall days in October
Granby, CO
- Average snowfall days in October: 9 days
The month with the highest number of snowfall days is February (16.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in October /
Average sunshine in October
Granby, CO
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 7h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in October
Granby, CO
- Average sunshine days in October: 18.3 days
The months with the most sunshine days are September and November (19.5 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in October
Granby, CO
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Granby, CO
- Average cloud cover in October: 20
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in October
Granby, CO
- Average visibility in October: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
