2/14/2024 0 Comments Spokane weather averagesFind out how often it rains, snows, and the gets cold or hot in Spokane. To follow is a brief midsummer report summarizing temperature data from three locations in the Spokane River. Complete climate information for Spokane, Washington. We are concerned these high average temperatures and elevated nighttime temperatures will lead to an even warmer river. Spokane Riverkeeper has been monitoring temperatures in the Spokane River since 2015, and this summer marks some of the highest water temperatures we’ve seen in the last six years. We will also see an increased number of days reaching 90℉ or above. Climate change projections for Spokane predict our average annual mid-century temperatures will be 4.4℉ to 5.9℉ higher, depending on future levels of greenhouse gas emissions. June 29th, Spokane reached 109☏ (42.8☌), the highest temperature since records began 140 years ago. We also saw the warmest nighttime temperature of 78℉ (25.6℃) on June 30th. July 2021 was the hottest July on record for Spokane, with an average temperature of 77.5℉ (25.3℃). It also shows the maximum and minimum recorded temperatures.This summer has been exceptionally hot, with record-breaking air temperatures. The chart below plots the average high and low temperature for each month of the year. The following charts show yearly weather trends with information on monthly weather averages and extremes. YEARLY TRENDS: WEATHER AVERAGES & EXTREMES On average the month of December is affected by foggy conditions on 13 days. In recent years the maximum sustained wind speed has reached 59 km/h, that’s the equivalent of around 37 mph, or 32 knots. The average daily wind speed in December has been around 14 km/h, that’s the equivalent to about 9 mph, or 7 knots. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual. the average number of hours the sun is actually out and shining. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. For December expect the sun to shine for an average of 3 hours per day. We calculate sunshine hours per day using our past forecast data. Throughout the month you can expect to see rain or drizzle falling on 9 days of the month, with snow falling on 15 days. The table below displays max and min temperature and rain data for the whole year as an average taken from last 12+ years of historical data for Spokane. Spokane in May usually receives moderate rainfall, averaging around 30 mm ( show in inches) for the month. Throughout the day, temperatures typically settle at around 20C ( show in F ). Based on annual weather averages for Spokane (99219), the best month to go for holiday is September and June. In Spokane the weather in May is generally perfect, with pleasant temperatures and moderate rainfall. The average monthly amount of precipitation has been recorded at around 62 mm, that's 2 inches. 99219, Spokane, Washington Weather Averages. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.Ĭomfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information). The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. The average daily relative humidity for December is around 92%. In recent times the highest recorded temperature in December has been 12☌ that's 54☏, with the lowest recorded temperature -24☌, about -12☏. At night the average minimum temperature drops down to around -5☌, that's 24☏. Throughout the month of December daytime temperatures will generally reach highs of around 0☌ that's about 33☏. The climate profile is taken from closest available data source to Badger Lake, Spokane. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences.
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