Last Frost Day

Frost history / Whitman 5 Ene, NE

Whitman 5 Ene, NE: frost dates by year

Last spring and first fall frost at NOAA station USW00094079, 2005 to 2024, measured from daily minimum temperatures.

Elevation 3,740 ft, 42.068, -101.445. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 6Oct 9
EarliestApr 14 (2007)Sep 9 (2020)
LatestMay 22 (2022)Oct 28 (2015)
Trend7.2 days later per decade3.1 days earlier per decade
Years with data2020

At 28°F (hard freeze) the median last spring date is Apr 24 and the median first fall date is Oct 23.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Mar 31Apr 15Apr 30May 15May 30201020202005: May 32006: Apr 262007: Apr 142008: May 112009: May 12010: May 82011: May 32012: Apr 162013: May 52014: May 122015: May 202016: May 142017: May 202018: Apr 252019: May 102020: May 112021: May 102022: May 222023: May 22024: May 4

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11201020202005: Oct 62006: Oct 112007: Oct 212008: Oct 132009: Oct 22010: Oct 282011: Oct 182012: Oct 42013: Oct 42014: Sep 112015: Oct 282016: Oct 62017: Oct 92018: Oct 32019: Oct 92020: Sep 92021: Oct 142022: Oct 172023: Oct 72024: Oct 14

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2024May 4Oct 14Apr 20Nov 5
2023May 2Oct 7Apr 24Oct 26
2022May 22Oct 17Apr 25Oct 17
2021May 10Oct 14Apr 24Nov 2
2020May 11Sep 9May 10Oct 17
2019May 10Oct 9May 2Oct 10
2018Apr 25Oct 3Apr 19Oct 10
2017May 20Oct 9Apr 27Oct 26
2016May 14Oct 6Apr 1Nov 17
2015May 20Oct 28Apr 22Oct 28
2014May 12Sep 11Apr 17Oct 30
2013May 5Oct 4May 4Oct 18
2012Apr 16Oct 4Mar 9Oct 5
2011May 3Oct 18Apr 20Oct 19
2010May 8Oct 28May 8Nov 4
2009May 1Oct 2Apr 28Oct 8
2008May 11Oct 13May 11Oct 26
2007Apr 14Oct 21Apr 12Oct 31
2006Apr 26Oct 11Apr 26Oct 11
2005May 3Oct 6May 2Oct 6

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.