Climate and monthly weather forecastChillum, MD
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Chillum, Maryland, with an average temperature varying between 39.7°F (4.3°C) and 27.1°F (-2.7°C). In Chillum, the month of January is known for its lowest average temperatures, reaching a high of 39.7°F (4.3°C) and a low of 27.1°F (-2.7°C). Weather in January »Weather in February
The last month of the winter, February, is a frosty month in Chillum, Maryland, with an average temperature varying between 43.9°F (6.6°C) and 29.8°F (-1.2°C). The arrival of February sees a recorded average high-temperature of a chilly 43.9°F (6.6°C), showing little divergence from the previous month's conditions. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Chillum, Maryland, with an average temperature ranging between min 37°F (2.8°C) and max 52.3°F (11.3°C). Chillum's transition into March brings a slight rise in the average high-temperature, moving from a frosty 43.9°F (6.6°C) in February to a fresh 52.3°F (11.3°C). Weather in March »Weather in April
April in Chillum, Maryland, is a comfortable spring month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 46.8°F (8.2°C). Noticing a change, the average high-temperature during April moves from March's cool 52.3°F (11.3°C) to a refreshing 64.9°F (18.3°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Chillum, Maryland, with an average temperature fluctuating between 56.5°F (13.6°C) and 74.3°F (23.5°C). As Chillum welcomes May, the average high-temperature sees a rise, transitioning from a comfortable 64.9°F (18.3°C) in April to a warm 74.3°F (23.5°C). Weather in May »Weather in June
June, the first month of the summer in Chillum, is also a moderately hot month, with an average temperature ranging between max 82.2°F (27.9°C) and min 64.4°F (18°C). June's arrival coincides with a marginal rise in the average high-temperature, moving from May's 74.3°F (23.5°C) to a still warm 82.2°F (27.9°C). Weather in June »Weather in July
July in Chillum, Maryland, is a hot summer month, with an average temperature fluctuating between 87.4°F (30.8°C) and 69.6°F (20.9°C). Chillum notes the warmest temperatures in July, with a high average of 87.4°F (30.8°C) and a low of 69.6°F (20.9°C). In July, the heat index is computed to be a sweltering 98.6°F (37°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Chillum, Maryland, with an average temperature varying between 68.2°F (20.1°C) and 85.6°F (29.8°C). Chillum's August average high-temperature settles at a warm 85.6°F (29.8°C), showing a near match with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Chillum, Maryland, with an average temperature varying between 78.4°F (25.8°C) and 61.7°F (16.5°C). September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 85.6°F (29.8°C) to a still moderately hot 78.4°F (25.8°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Chillum, Maryland, with temperature in the range of an average low of 50.9°F (10.5°C) and an average high of 66.4°F (19.1°C). As September transitions to October, the average high-temperature falls from a moderately hot 78.4°F (25.8°C) to a comfortable 66.4°F (19.1°C). Weather in October »Weather in November
November, the last month of the autumn in Chillum, is another cool month, with an average temperature ranging between min 39.4°F (4.1°C) and max 53.6°F (12°C). A shift in the average high-temperature occurs in November, reducing from a comfortable 66.4°F (19.1°C) in October to a fresh 53.6°F (12°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Chillum, Maryland, with an average temperature fluctuating between 45.3°F (7.4°C) and 33.3°F (0.7°C). December is characterized by a slight reduction in average high-temperature, easing from a fresh 53.6°F (12°C) in November to a frosty 45.3°F (7.4°C). Weather in December »Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, known for its average high temperature of 39.7°F (4.3°C) and an average low temperature of 27.1°F (-2.7°C), is the coldest month.
January is the month with the least rainfall. Rain falls for 8.8 days and accumulates 1.89" (48mm) of precipitation.
Throughout the year, there are 154.8 rainfall days, and 30.28" (769mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
The month with the most snowfall is January, when snow falls for 4.6 days and typically aggregates up to 2.87" (73mm) of snow.
Throughout the year, there are 15 snowfall days, and 9.17" (233mm) of snow is accumulated.
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2.
With an average of 4.9h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The months with the highest humidity are May, October and December, with an average relative humidity of 75%.
May through October are months without snowfall.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
The month with the longest days is June, with an average of 14h and 54min of daylight.
Chillum's July weather, with an average high temperature of 87.4°F (30.8°C) and an average low temperature of 69.6°F (20.9°C), tends to be the warmest of the year.
With an average relative humidity of 69%, July is the least humid month.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
August is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.86" (98mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Chillum, MD
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure
Chillum, MD
- Average pressure in January:
30.11"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:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"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 (29.95"Hg).
Average wind speed
Chillum, MD
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Chillum, MD
The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Chillum, MD
- Average rainfall in January:
1.89" - Average rainfall in February:
2.01" - Average rainfall in March:
2.28" - Average rainfall in April:
2.52" - Average rainfall in May:
2.87" - Average rainfall in June:
2.48"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days
Chillum, MD
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall
Chillum, MD
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Chillum, MD
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.1 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 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Chillum, MD
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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 30min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 42min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Chillum, MD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).
Average UV index
Chillum, 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, November and December (UV index 2).
Average cloud cover
Chillum, MD
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Chillum, MD
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
