Climate and monthly weather forecastWestminster, MD
Climate and monthly weather forecast
The climate of Westminster
Westminster, Maryland, finds itself situated within a region characterized by a Cfa climate, as per Köppen climate classification. This indicates the predominant climate is a humid subtropical one, with no dry season. Weather patterns fluctuate throughout the year, yielding a diversity of conditions. The weather in Westminster generally oscillates from cool in the winter to warm in the summer, with considerable humidity levels throughout the year.Temperature readings reveal a high of 83.8°F (28.8°C) in July and a low of 23.9°F (-4.5°C) in January. Conditions go from cool to progressively hotter in the first half of the year, reaching their peak in summer, before gradually cooling down towards the end of the year. Rainfall also presents an interesting pattern, with an annual high of 3.9" (99mm) in August and an annual low of 2.13" (54mm) in February.
The winter months typically experience a larger share of snow, with January witnessing the most considerable snowfall, at 3.5" (89mm). Relative humidity is fairly consistent throughout the year, with slight increments noticeable during the summer months. Cloud coverage varies over the course of the year, with percentages swinging predominantly from 32% to 49%.
The best time to visit Westminster
In terms of the best time to visit, consideration must be given to what activities the visitor prioritizes. For those who enjoy outdoor summer activities and can handle moderate heat, June to August would be a good period to visit. Average temperatures during this period range between 71.2°F (21.8°C) to 83.8°F (28.8°C). Sunshine hours are also at their height during the summer, exceeding more than 9 hours on average from June to August.The worst time to visit Westminster
If you are not a fan of cold weather and occasional snowfall, then January and February may not be the ideal times to visit Westminster. During these months, the average low temperature dips to as low as 23.9°F (-4.5°C). Snowfall is most prevalent in January, with an average of 3.5" (89mm).Spring weather in Westminster
Spring weather in Westminster ranges from March to May. During this period, temperatures gradually increase with highs reaching from 49.3°F (9.6°C) in March to 71.2°F (21.8°C) in May. Relative humidity also sees a slight climb, whereas rainfall ranges between 2.36" (60mm) in March to 3.35" (85mm) in May. Winds during the spring season are at an annual high of 8.8mph (14.2km/h) in March.Summer weather in Westminster
Enjoy a warm summer in Westminster from June to August with the daily mean high temperature peaking at 83.8°F (28.8°C) in July. High relative humidity accompanies these temperatures, reaching up to 81% in May. Rainfall quantifies up to 3.39" (86mm) in July. This season also experiences the most significant daylight hours, with a high of 14.9 hours in June.Autumn weather in Westminster
Autumn in Westminster lasts from September to November, characterized by cooler temperatures and reduced daylight hours. During this period, temperatures lower gradually reaching down to 51.3°F (10.7°C) in November from 75°F (23.9°C) in September. Rainfall also lessens from 2.44" (62mm) in September to 2.64" (67mm) in November.Winter weather in Westminster
Winter in Westminster is generally defined by cooler temperatures and snowfall. Running from December to February, these months see temperatures dropping to a low of 23.9°F (-4.5°C) in January and highs reaching only up to 42.8°F (6°C) in December. December and January also witness the most significant occurrence of snowfall, reaching up to 3.5" (89mm) in January. Wind speed tends to be at its highest during this chilly season, with an annual high of 8.1mph (13km/h) in December.Weather in January
Starting the year, January's weather in Westminster, Maryland sees a high average temperature of 36.9°F (2.7°C) and dips to a low of 23.9°F (-4.5°C). This indicates that Westminster experiences generally colder temperatures compared to other months. Weather in January »Weather in February
February's weather in Westminster, Maryland can be characterized as slightly milder than January's. The temperature fluctuates from a high of 40.5°F (4.7°C) down to a low of 26.1°F (-3.3°C). Among February's weather elements, the increased outcome of rain is a noticeable feature, registering 2.13" (54mm) of rainfall. Weather in February »Weather in March
Moving into spring, March in Westminster, Maryland brings about some much needed warmth. This month distinguishes itself with its high average temperature leaping to 49.3°F (9.6°C) and a low of 33.4°F (0.8°C). March also initiates the transitional phase out of snowfall as the amount reduces to 4.06" (103mm). Weather in March »Weather in April
April's weather in Westminster, Maryland fosters higher energy levels with the temperatures setting between an average high of 61.5°F (16.4°C) and a low of 43.2°F (6.2°C). Visitors can brace themselves for a noticeable shift in the climates as the last trappings of snow, around 0.28" (7mm), tend slowly fade into non-existence. Weather in April »Weather in May
May's weather in Westminster, Maryland indicates the true advent of summer. The average high temperature steadily climbs to reach 71.2°F (21.8°C) whereas the average low sits at 53.1°F (11.7°C). In May, rainfall reaches a significant amount of 3.35" (85mm), an evident increase throughout the first half of the year. Weather in May »Weather in June
In Westminster, Maryland, the weather in June brings abundant warmth, with a high average temperature of 78.4°F (25.8°C) and a minimum average of 60.6°F (15.9°C). June announces its arrival with the longest daylight duration of approximately 15 hours. Weather in June »Weather in July
July's weather in Westminster, Maryland, peaks the summer season with the highest average temperature reaching 83.8°F (28.8°C) and a low average of 65.7°F (18.7°C). This period records the warmest days, with maximum sunlight exposure and a UV index peaking at 6. Weather in July »Weather in August
August's weather in Westminster, Maryland maintains a similar pattern to July, with a minor drop in the high average temperature to 81.7°F (27.6°C) and a low averaging 63.5°F (17.5°C). August, unlike the preceding months, archives the highest rainfall of 3.9" (99mm). Weather in August »Weather in September
In Westminster, Maryland, September's weather invites the onset of fall. September's average temperatures range from 75°F (23.9°C) down to 57°F (13.9°C). The month is distinguished by a clear decrease in rainfall, recording 2.44" (62mm). Weather in September »Weather in October
October's weather in Westminster, Maryland is the embodiment of fall with temperatures hovering between a high of 63.5°F (17.5°C) and a low of 47.7°F (8.7°C). The transition is witnessed in the form of reduced daylight hours and humidity levels. Weather in October »Weather in November
In Westminster, Maryland, November's weather ushers in the early signs of winter. With temperatures averaging from a high of 51.3°F (10.7°C) to a low of 36.1°F (2.3°C), winter's arrival can be felt. November's unique characteristic lies in its significant decrease in daylight hours, averaging to only 10 hours per day. Weather in November »Weather in December
December's weather in Westminster, Maryland is truly wintry, with temperatures ranging from a high of 42.8°F (6°C) down to a low of 30.4°F (-0.9°C). The city is shrouded in a winter haze as snowfall enhances, accumulating to 1.93" (49mm). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Westminster, MD
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.9°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Westminster, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Westminster, MD
- Average wind speed in January:
8.7mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.6mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.1mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Westminster, MD
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, April, July and November (76%).
Average rainfall
Westminster, MD
- Average rainfall in January:
2.2" - Average rainfall in February:
2.13" - Average rainfall in March:
2.36" - Average rainfall in April:
2.64" - Average rainfall in May:
3.35" - Average rainfall in June:
2.52"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (2.13").
Average rainfall days
Westminster, MD
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.7 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Westminster, MD
The month with the highest snowfall is March (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Westminster, MD
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
6.6 days - Average snowfall days in March:
4.9 days - Average snowfall days in April:
0.6 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.2 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Westminster, MD
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 36min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Westminster, MD
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
12.7 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index
Westminster, MD
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Westminster, MD
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Westminster, MD
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).





