Climate and monthly weather forecastRedmond, WA
Climate and monthly weather forecast
The climate of Redmond
Redmond, Washington, located on the northeastern edge of King County, belongs to the Köppen climate classification of Csb. This predominantly Mediterranean weather pattern is characterized by a warm summer. The climate conditions observed in Redmond remain relatively steady throughout the year.Redmond's temperature reaches its peak from July to August, fluctuating between 75.6°F (24.2°C) and 76.3°F (24.6°C) for maximum temperatures and from 51.1°F (10.6°C) to 52.5°F (11.4°C) for minimum temperatures. Conversely, the coldest month is January, with a maximum temperature reading 44.2°F (6.8°C) and a minimum settling around 34.5°F (1.4°C).
Relative humidity ranges from 70% to 85%, peaking in the chillier months of January and February, while coming down to its yearly low between July to August. Rainfall spans from a scanty 0.39" (10mm) in July to a considerable 4.37" (111mm) in December. Snowfall appears minimal in Redmond, more likely to be spotted from January to March with a peak quantity of 2.05" (52mm) in February. Sunshine hours differ, peaking in the sunny stretch between July to August at 10.5 hours to 10.7 hours, and dropping to a low of 4.2 hours during the shorter days of December.
The best time to visit Redmond
Considering the variations in climatic patterns, the most opportune time to visit Redmond seems to be the dry summer months between June and August. The temperature during this period ranges from 64.2°F (17.9°C) to a comfortable 76.3°F (24.6°C), with humidity dropping to a yearly low of 70%. The rainfall also reaches its minimum, ranging between 0.39" (10mm) to 1.14" (29mm), contributing to sunny days with plentiful daylight hours. The sunshine duration averages from 9.4 hours to 10.5 hours during these months, allowing ample opportunity to explore the outdoors.The worst time to visit Redmond
The late autumn and early winter periods, specifically between November and January, might be considered the less favourable time for a visit to Redmond. The temperature drops to a yearly low of 42.1°F (5.6°C) in December. Increased rainfall, with a peak of 4.37" (111mm) in December, along with heightened humidity crossing over 85%, can make sightseeing somewhat uncomfortable. Furthermore, diminished daylight hours reaching a low of 8.5 hours coupled with a reduced sunshine duration of 4.2 hours in December may also affect tourist activities.Spring weather in Redmond
Spring arrives in Redmond between March and May with a gradual rise in temperature from 50.2°F (10.1°C) to 64.2°F (17.9°C). At the break of spring, March sees a comparatively high relative humidity of 83%, which reduces to 76% by May. Rainfall decreases over these months, with precipitation reducing from 3.11" (79mm) in March to 1.54" (39mm) by May, making way for more sunny days.Summer weather in Redmond
Redmond's summer, transpiring between June and August, is usually dry and sunny. The temperature ranges from 64.2°F (17.9°C) to a peak of 76.3°F (24.6°C) while the humidity drops to a comfortable 70%. Rainfall is at a yearly minimum, dropping to 0.39" (10mm) in July. This allows a fair amount of sunshine, ranging from 9.4 hours to 10.5 hours, encouraging outdoor activities.Autumn weather in Redmond
The autumn months from September to November in Redmond offer a significant drop in temperatures from 69.3°F (20.7°C) to a cooler 48.2°F (9°C). The relative humidity rises from 75% to 84% and rainfall increases, especially in November, with a precipitation level of 3.94" (100mm). The duration of sunshine reduces steadily from 9.4 hours to a low of 4.6 hours in November as the days get shorter.Winter weather in Redmond
Winter in Redmond, occurring between December and February, presents cold weather with temperatures hovering from 42.1°F (5.6°C) to 45.1°F (7.3°C). Humidity is high during this season, peaking at 85%, and snowfall, although minimal, is still visible between January and February. Daylight hours reduce to a minimum of 8.5 hours in December, and sunshine duration also decreases to a low of 4.2 hours. The season observes the highest rainfall, peaking at 4.37" (111mm) in December.Weather in January
January in Redmond, Washington, USA, brings a blanketing chill as the year's coldest month kicks off with lows dipping to 34.5°F (1.4°C). The mercury struggles to break past 44.2°F (6.8°C), even at the peak of the day. Bright sunny days are a rarity with the majority of the day often shrouded under cloud cover. Weather in January »Weather in February
The grip of winter loosens slightly in February as temperatures experience a nominal uptick, wiping away much of January's snowfall. Mild winds continue to feature prominently, casting a cold breath on Redmond's weather scene. Weather in February »Weather in March
March brings signs of thawing out as Redmond transitions into spring. Still cool but perceptibly milder than the preceding months, the city continues to face showers, albeit with less frequency. Winter's white blanket disappears entirely with an absence of snowfall. Weather in March »Weather in April
April represents the flight of frosty winters and the advent of refreshing spring in Redmond. With the rise in temperatures, snowfall becomes a distant memory. Although rainfall persists, it noticeably tapers off from the winter months, signaling the onset of drier days. Weather in April »Weather in May
May behaves as a harbinger of summer and the warmest days of the year soon to come. As temperatures steadily climb, May basks Redmond in the soft, welcoming warmth of spring's twilight. Even though rainfall continues to pepper the city, it is significantly lower, leading to an increase in sunshine hours lightening up the city. Weather in May »Weather in June
June officially rings in the summer season with temperatures soaring to a daytime high of 68.7°F (20.4°C). The shift from spring is marked by a dramatic transformation in the landscape with greenery taking over. While rainfall occurrences diminish, the effects of evaporating water create a relatively high humidity. Weather in June »Weather in July
The zenith of the summer season is met in July, bestowing Redmond with its warmest temperatures annually. Daylight lasts for up to 15.5 hours, making it the longest day of the year. Summer's rain deficit contrasts with the earlier months, as July witnesses a meager rainfall of 0.39" (10mm). Weather in July »Weather in August
August continues the trend of high-summer heat, although rainfall picks up slightly from July's low. Strong sunshine remains a consistent element with long daylight hours amplifying its effect. This month redefines the summer season with soaring temperatures, gripping Redmond in a warm embrace. Weather in August »Weather in September
September marks the beginning of autumn, wherein Redmond witnesses a slow fall in temperatures. The scorching heat dares to linger but eventually makes way for the cool fall breeze. September serves as a transition with days shortening and once constant sunshine starting to fade. Weather in September »Weather in October
In October, Redmond's landscape is painted in shades of autumn, accentuated by the gradual drop in temperature. Rainfall ascends sharply, setting the rhythm for the second half of the month. The decreasing daylight hours mirror the setting sun of the year, casting long shadows and shorter days. Weather in October »Weather in November
November takes a sharp turn towards winter as temperatures dip drastically across Redmond. Snow begins to debut sporadically with light dustings of 0.2" (5mm) on average. The city braves the lashes of frequent showers as the month captures some of the highest rainfall. Weather in November »Weather in December
Redmond, Washington, USA, in December is synonymous with winter's onset. The city greets December's chill with shortened hours of daylight, a mere 8.5 hours on average. Temperatures hover between a low of 34°F (1.1°C) and a high of 42.1°F (5.6°C), reinforcing the need for heavy winter wear. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Redmond, WA
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (42.1°F).
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure
Redmond, WA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Redmond, WA
- Average wind speed in January:
5mph - Average wind speed in February:
4.7mph - Average wind speed in March:
5mph - Average wind speed in April:
4.3mph - Average wind speed in May:
3.8mph - Average wind speed in June:
3.6mph
- Average wind speed in July:
3.4mph - Average wind speed in August:
3.4mph - Average wind speed in September:
3.7mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.7mph
The windiest months (with the highest average wind speed) are January and March (5mph).
The calmest months (with the lowest average wind speed) are July and August (3.4mph).
Average humidity
Redmond, WA
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Redmond, WA
- Average rainfall in January:
4.29" - Average rainfall in February:
3.15" - Average rainfall in March:
3.11" - Average rainfall in April:
2.52" - Average rainfall in May:
1.54" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.55" - Average rainfall in September:
1.57" - Average rainfall in October:
3.11" - Average rainfall in November:
3.94" - Average rainfall in December:
4.37"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days
Redmond, WA
- Average rainfall days in January:
17.9 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
19.7 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
12.9 days - Average rainfall days in June:
11.6 days
- Average rainfall days in July:
7.4 days - Average rainfall days in August:
5.9 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
15.1 days - Average rainfall days in November:
18.9 days - Average rainfall days in December:
18.7 days
The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (5.9 days).
Average snowfall
Redmond, WA
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Redmond, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.5 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:
0.6 days - Average snowfall days in December:
1.3 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Redmond, WA
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 12min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 36min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days
Redmond, WA
- Average sunshine days in January:
10.9 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
9.9 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
21.9 days - Average sunshine days in August:
23.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
9.5 days - Average sunshine days in December:
11 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is February (8.8 days).
Average UV index
Redmond, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Redmond, WA
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility
Redmond, WA
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).





