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Westminster (CO) Weather and Climate: A Comprehensive Guide

The temperature in Westminster can vary greatly throughout the year. The temperatures shift from very warm to cold. It maintains relatively low levels of precipitation throughout the seasons. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very warm to chilly in Westminster. Average maximum daytime temperatures range from a very warm 32°C in July, the warmest time of the year, to a chilly 7°C during cooler months like December.

At night, temperatures typically drop to an average of around -8°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

With annual rain/snowfall averaging 442 mm, Westminster maintains relatively low precipitation levels throughout the seasons. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, May receives moderate rainfall, averaging 73 mm of precipitation, recorded across 12 rainy days. In contrast, the drier season, January brings less snow/rainfall, with 13 mm over 5 snowy/rainy days. For more details, please visit our Westminster Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Westminster. While July receives considerable daily sunshine with up to 10.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 6.5 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Denver, the United States of America (20 KM, 12 Miles).

Daily hours of sunshine

Data from: Denver, the United States of America (20 KM, 12 Miles).

Forecast for Westminster (CO)

Sat   Dec 21
15°C | 0°C
SW 3 m/s
almost clear and no rain

almost clear and no rain

Sun   Dec 22
15°C | 5°C
NW 5 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Dec 23
11°C | 3°C
NE 3 m/s
0.3 mm
broken clouds and  chance of slight rain

broken clouds and chance of slight rain

The best time of year to visit Westminster in the United States of America

Other facts from our historical weather data:
  • When is summer in Westminster?
    The hottest season / summer takes place in June, July, August and September.
  • Does Westminster have a dry season?
    Yes, the months of January and November are very dry.
  • Which is the warmest month in Westminster?
    July has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Westminster?
    The coldest month is December with an average maximum temperature of 7°C.
  • Which is the wettest month in Westminster?
    May tops the wettest month list with 73 mm of rainfall.
  • Which is the driest month in Westminster?
    January is the driest month with 13 mm of precipitation.
  • Which is the sunniest month in Westminster?
    July is the sunniest month with an average of 323 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.