Richland, WA weather and climate in 2024
Day
5 °C
Night
-2 °C
Sea
0 °C
Precipitation
24 mm
in month
Rainy days
9 days
in month
Daylight
9 hours
average
Sunshine
2 hours
average
Humidity
78 %
Day
5 °C
Night
-2 °C
Sea
0 °C
Precipitation
24 mm
in month
Rainy days
9 days
in month
Daylight
9 hours
average
Sunshine
2 hours
average
Humidity
78 %
Overview: Richland, WA
Weather charts for Richland, WA
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Weather overview for Richland, WA
Weather overview
Richland, Washington, situated at the confluence of the Yakima and the Columbia Rivers, experiences a semi-arid climate with four distinct seasons. The blazing summer sun brings daytime temperatures that can climb to 32 °C (90 °F) in July, while the winter can be crisp and cool, with temperatures dipping to 5 °C (40 °F) in December. Precipitation is light throughout the year, with an annual average of just 12 mm (0.49 in) in June, but the winter months can see a slight uptick in rainy days, reaching 10 days in December. With over 12 hours of sunshine, July is the sunniest month, perfectly complimenting the seasonal heat. The lower humidity levels in summer, around 39 %, make it an inviting time for outdoor activities.
January weather
January in Richland begins with cooler temperatures and a calm winter ambiance. During this time, temperatures generally reach highs around 5 °C (42 °F), while at night, the mercury can drop to an average low of -2 °C (28 °F). Expect to encounter around 9 days of precipitation, indicating a mix of rain and possibly snow.
February weather
As Richland advances through February, the daylight slowly increases, and so do the temperatures, with daily highs nearing 9 °C (48 °F). The nights are still brisk, averaging around -1 °C (30 °F). The number of wet days is typically fewer than January, with an average of 8 days.
March weather
March in Richland welcomes the first hints of spring. Daytime temperatures are comfortably mild with averages around 15 °C (58 °F), but nights can still be cool, averaging 2 °C (36 °F). The number of wet days this month averages around 8 days, and the winds begin to pick up, with an average speed of 3 m/s.
April weather
April sees a significant rise in both temperatures and daylight hours in Richland. Daytime highs average 19 °C (67 °F), providing plenty of warmth, while the average nighttime low is 5 °C (42 °F). Expect an average of 6 days of precipitation this month, making it one of the drier spring months.
May weather
May in Richland heralds the true beginning of warmer weather, with average daytime highs reaching 24 °C (75 °F). Nighttime temperatures also become more comfortable at an average of 9 °C (49 °F). Rainfall remains relatively low this month, with an average of 6 days indicating dry days are the norm.
June weather
June's arrival in Richland marks the onset of the dry season, with the least precipitation throughout the year at an average of 12 mm (0.49 in). Temperatures during the day reach a warm 28 °C (82 °F) on average, while the nights are comfortably temperate at 13 °C (55 °F).
July weather
July is the epitome of summer in Richland, with the mercury soaring to an average of 32 °C (90 °F) during the day, tapering off to pleasant evenings with an average low of 16 °C (60 °F). Barely any wet days occur this month, with just 2 days on average, leaving plenty of time to bask in the sun, which shines for an impressive 12 hours.
August weather
August in Richland remains hot, with daily highs typically around 32 °C (90 °F). Evenings offer a slight reprieve from the heat with an average low of 15 °C (59 °F). As the dry season continues, wet days are uncommon, with an average of 2 days.
September weather
September in Richland signals the beginning of the transition to autumn. The heat begins to moderate with average daily temperatures of 27 °C (80 °F), and nights become cooler, dropping to 10 °C (50 °F) on average. There's a slight increase in wet days to 3 days, as the dry season gradually gives way.
October weather
October brings the fall in full swing to Richland, with average highs of 19 °C (67 °F) and lows of 5 °C (41 °F). The number of wet days increases to 5 days, and the wind speed begins to descend to an average of 3 m/s.
November weather
November's chill starts to set in across Richland, with daytime temperatures cooling to an average high of 11 °C (51 °F). Nighttime lows hover around 1 °C (34 °F), and wet days become more common, numbered at 9 days. Expect fewer sun hours as winter approaches.
December weather
December in Richland wraps up the year with the approach of winter. Temperatures reach a daytime high of around 5 °C (40 °F), while the night can drop to an average low of -2 °C (28 °F). The month also sees the most wet days, averaging at 10 days, and the relative humidity reaches its peak for the year at 80 %.
FAQs
How cold does it get at night in Richland, WA during January?
January nights in Richland, WA can be quite chilly, with an average low temperature of -2 °C (28 °F), so bundle up if you're heading out after dusk.
What can I expect from February weather in Richland, WA?
Expect a slight warming trend in February with average daytime highs of 9 °C (48 °F) and cold nights. Gradually longer days hint at the approaching spring.
Does it start to warm up in Richland, WA during March?
Indeed, March sees a noticeable warm-up in Richland with average daytime temperatures reaching 15 °C (58 °F), signaling a pleasant transition towards spring.
Are April days in Richland warm enough to spend time outside?
Absolutely, April days in Richland are generally warm with an average high of 19 °C (67 °F), perfect for outdoor activities and enjoying the blooming landscapes.
What is the average high temperature in Richland, WA during May?
May in Richland boasts pleasant warmth with average daytime highs of 24 °C (75 °F), perfect for a range of outdoor activities.
How warm is June in Richland, WA?
June in Richland ushers in summer warmth with average daytime temperatures of 28 °C (82 °F), ideal for nearly all summertime pursuits.
Is it hot in Richland, WA in July?
Absolutely, July in Richland sizzles with high temperatures averaging 32 °C (90 °F), making it the hottest month of the year. Hydration and sun protection are key remedies to enjoy the peak of summer heat.
Is August as hot as July in Richland, WA?
Yes, August stands shoulder-to-shoulder with July in terms of heat in Richland, WA, with temperatures peaking around 32 °C (90 °F) during the day.
Does the temperature in Richland start to cool down in September?
As September arrives, Richland does start to experience a gentle cooling trend, with daytime temperatures averaging 27 °C (80 °F), making for more comfortable outdoor experiences.
What are the typical fall temperatures in Richland, WA in October?
Typical fall temperatures in Richland during October are mild and pleasant, with an average high of 19 °C (67 °F) and the leaves changing colors amidst crisp air.
How cool does it get in Richland in November?
November in Richland certainly cools down, with average highs of 11 °C (51 °F), requiring warmer clothes as you step outside.
Is December very cold in Richland, WA?
December is indeed one of the coldest months in Richland, with daytime highs averaging at just 5 °C (40 °F) and nights that can feel quite bitter.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.