Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Riderwood, Maryland, with an average temperature ranging between max 37.9°F (3.3°C) and min 25.9°F (-3.4°C). January is the month when Riderwood experiences its coldest temperatures, averaging a high of 37.9°F (3.3°C) and a low of 25.9°F (-3.4°C). Weather in January »
Weather in February
February, the last month of the winter in Riderwood, is also a wintry month, with an average temperature varying between 28.2°F (-2.1°C) and 41.4°F (5.2°C). Riderwood experiences a recorded average high-temperature of a still wintry 41.4°F (5.2°C) in February, closely aligned with January's 37.9°F (3.3°C). Weather in February »
Weather in March
March, the first month of the spring in Riderwood, is a cool month, with an average temperature varying between 35.1°F (1.7°C) and 50°F (10°C). In March, the meteorological conditions subtly change with the average high-temperature edging from a wintry 41.4°F (5.2°C) in February to a cool 50°F (10°C). Weather in March »
Weather in April
April is a refreshing spring month in Riderwood, Maryland, with an average temperature varying between 62.6°F (17°C) and 45.1°F (7.3°C). As Riderwood welcomes April, the average high-temperature sees a rise, transitioning from a cool 50°F (10°C) in March to a comfortable 62.6°F (17°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Riderwood, Maryland, with an average temperature varying between 55°F (12.8°C) and 71.6°F (22°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a comfortable 62.6°F (17°C) in April to a pleasant 71.6°F (22°C). Weather in May »
Weather in June
June, the first month of the summer in Riderwood, is a warm month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.3°F (26.3°C). Riderwood's June weather indicates a minor increase in high-temperatures, edging from May's pleasant 71.6°F (22°C) to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Riderwood, Maryland, with an average temperature fluctuating between 68.5°F (20.3°C) and 84.9°F (29.4°C). July, with an average high of 84.9°F (29.4°C) and a low of 68.5°F (20.3°C), signifies the warmest month of the year. The heat index for July is evaluated at a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Riderwood, is also a moderately hot month, with an average temperature varying between 66.7°F (19.3°C) and 82.8°F (28.2°C). Riderwood marks the onset of August with an average high-temperature of a still moderately hot 82.8°F (28.2°C), subtly divergent from July's 84.9°F (29.4°C). Weather in August »
Weather in September
September, the first month of the autumn in Riderwood, is still a warm month, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 60.4°F (15.8°C). In Riderwood, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 82.8°F (28.2°C) to a still moderately hot 76.3°F (24.6°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Riderwood, Maryland, with an average temperature varying between 64.8°F (18.2°C) and 50.2°F (10.1°C). October's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 76.3°F (24.6°C) in September to an enjoyable 64.8°F (18.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Riderwood, Maryland, with an average temperature varying between 38.8°F (3.8°C) and 52.9°F (11.6°C). Riderwood's progression into November involves a drop in the average high-temperature, receding from a refreshing 64.8°F (18.2°C) in October to a cool 52.9°F (11.6°C). Weather in November »
Weather in December
December, the first month of the winter in Riderwood, is also a frosty month, with an average temperature fluctuating between 33.1°F (0.6°C) and 43.9°F (6.6°C). Onset of December comes with a temperature decline, the average high falling from a cool 52.9°F (11.6°C) in November to a chilly 43.9°F (6.6°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Riderwood?
In Riderwood, January registers the lowest temperatures, averaging 37.9°F (3.3°C) at the peak and 25.9°F (-3.4°C) at the lowest.
What is the driest month in Riderwood?
January is the month with the least rainfall in Riderwood. Rain falls for 5.2 days and accumulates 0.47" (12mm) of precipitation.
How many days does it rain in Riderwood?
Throughout the year, there are 102.3 rainfall days, and 9.25" (235mm) of precipitation is accumulated.
When does it snow in Riderwood?
Months with snowfall in Riderwood are January through April, November and December.
What is the snowiest month in Riderwood?
January is the month with the most snowfall in Riderwood. Snow falls for 3.1 days and accumulates 0.55" (14mm) of snow.
How much does it snow in Riderwood?
Throughout the year, in Riderwood, there are 12.1 snowfall days, and 1.81" (46mm) of snow is accumulated.
What are the months with the lowest UV index in Riderwood?
The months with the lowest UV index in Riderwood, Maryland, are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Riderwood?
With an average of 4.9h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Riderwood?
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.
What is the least humid month in Riderwood?
The least humid month in Riderwood, Maryland, is April, with an average relative humidity of 73%.
What is the most humid month in Riderwood?
With an average relative humidity of 79%, May is the most humid month in Riderwood, Maryland.
When it does not snow in Riderwood?
In Riderwood, Maryland, snow does not fall in May through October.
What is the month with the highest UV index in Riderwood?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Riderwood?
June has the longest days of the year in Riderwood, with an average of 14h and 54min of daylight.
What is the hottest time of year in Riderwood?
In Riderwood, July is known for its average highest temperatures, reaching a high of 84.9°F (29.4°C) and a low of 68.5°F (20.3°C).
What month has the most sunshine in Riderwood?
The month with the most sunshine in Riderwood, Maryland, is July, with an average of 10.8h of sunshine.
What is the wettest month in Riderwood?
August is the month with the most rainfall. Rain falls for 11.3 days and accumulates 1.46" (37mm) of precipitation.
What is the month with the shortest days in Riderwood?
December has the shortest days of the year in Riderwood, Maryland, with an average of 9h and 24min of daylight.
Average temperature
Riderwood, MD
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure
Riderwood, 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:
29.99"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
Riderwood, MD
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Riderwood, MD
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Riderwood, MD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.51" - Average rainfall in March:
0.67" - Average rainfall in April:
0.63" - Average rainfall in May:
0.79" - Average rainfall in June:
0.94"
- Average rainfall in July:
1.22" - Average rainfall in August:
1.46" - Average rainfall in September:
0.51" - Average rainfall in October:
0.71" - Average rainfall in November:
0.59" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Riderwood, MD
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
6 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
10.1 days - Average rainfall days in May:
11.1 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
12.6 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
8 days - Average rainfall days in October:
7.3 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall
Riderwood, MD
The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Riderwood, MD
- Average snowfall days in January:
3.1 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.5 days - Average snowfall days in April:
0.3 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 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Riderwood, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Riderwood, MD
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
18.7 days - Average sunshine days in March:
20.3 days - Average sunshine days in April:
18.4 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
16.2 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
22.9 days - Average sunshine days in December:
21.9 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).
Average UV index
Riderwood, 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
Riderwood, MD
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Riderwood, MD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Riderwood, Maryland, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
