Historical Weather Events January

Jan 18

1943 Coldest recorded temperature in Idaho - -60 Deg F at Island Park Dam, Idaho. Jan 21

1930 In Boise - The highest sea level pressure on record of 31.13 inches is recorded. February

Feb 3

1947 Coldest recorded temperature in North America - -81.4 Deg F at Snag, Yukon Territory, Canada, March

Mar 29

1904 Boise, Idaho - 2.46 inches of rain which includes 3 inches of snow fall for the greatest one day liquid precipitation at Boise. April

May

May 30

1919 In Boise - The longest period without measurable precipitation begins. The dry spell will not end until Sep 15. June

July

Jul 10

1913 Hottest temperature in North America - 134 Deg F at Death Valley, California. Jul 19

1960 In Boise - Record high temperature of 111 degrees, the hotest day in Boise. Jul 21

1983 Coldest recorded temperature on Earth - -128.6 Deg F at Vostok station Antarctica. Jul 28

1934 Hottest recorded temperture in Idaho - 118 Deg F at Orofino, Idaho. August

Aug 21

2004 Thunderstorms in the Boise area bring down trees and power lines with winds estimated at 52 mph. Aug 30

2002 Flash Flood at Juntura, Oregon. More than 1 inch of rain fell in 15 minutes filling ditches and sending water over highway 20 in Juntura. September

Sep 11

1976 At the Boise Airport - 1.73" of rain fell, 1.12" of which fell in 60 minutes. This was associated with tropical storm Kathleen.

Maximmum Rainfall rates for this event were as follows...

5 mins .26"

10 mins .51"

15 mins .69"

30 mins 1.00"

1 hr 1.12"

2 hrs 1.16"

3 hrs 1.21" Sep 13

1922 Hottest recorded temperature on Earth - 136 Deg F at El Azizia, Libya 2001 A powerful thunderstorm dropped a half inch of rain in 15 minutes and nearly an inch in the hour between 3:00 and 4:00 p.m. on the afternoon of the 13th. This caused flash flooding in the steep terrain alongside the Payette River. The flash flooding triggered mudslides along a stretch of Highway 17 from 2 miles East of Banks to 8 miles East of Banks. Highway 17 was closed for 20 hours. A second area of mudslides located 2 miles North of Banks closed Highway 55 overnight . Some vehicles were trapped between mudslides but no one was injured. Cost of clearing this slide (and a slide three days later) was estimated at $500K. Sep 15

1919 In Boise - The longest period without measurable precipitation came to an end. The dry spell began May 30. Sep 16

2001 Flash flooding and mudslides occurred along the Payette River near Banks after a brief, heavy downpour. This was in the same area affected by flash flooding three days earlier. Sep 26

1986 An F0 tornado near Huston in Canyon county made a 1 mile long path. Thunderstorms in the Boise area brought down trees and power lines with winds estimated at 52 mph. Sep 29

2002 An F0 tornado touched down west of Emmett, in Gem County. This tornado tore limbs off trees, destroyed an outbuilding, damaged houses, and a vehicle. October

Oct 15

1980 In Boise - The lowest sea level pressure on record of 28.61 inches is recorded. November

Nov 7

1998 Winter Storm puts 12 inches of snow in Silver City, Idaho, 10 inches in Fairfield, Idaho, and 7 inches in Placerville. December

Dec 15

2000 In Boise - The windiest day on record with a peak gust of 63 mph. Dec 16

1884 In Boise - The snow storm which would bring the greatest 1 day snow fall begins. 5 inches of snow fell on the 16th, 17 inches fell on the 17th for a 2 day storm total of 22 inches. Dec 17

1884 In Boise Greatest 1 day snow fall - The snowstorm which began on December 16 ended. Snowfall on the 17th was 17 inches, total snowfall from this storm was 22 inches. Dec 20

1996 Boise, Idaho - 9.5 inches of snow fall for the second greatest one day snow total. Dec 22

1990 In Boise - Record low temperature of 25 below zero, the coldest day in Boise. Display events for today

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