Climatology of a Fall Freeze/Killing Freeze

Climatology of a
First Fall Freeze/Killing Freeze
across Western and North Central Nebraska

The farming/gardening growing season typically ends during the months of September or October across western and north central Nebraska. Many plants are sensative to freezing conditions, and will stop their production once temperatures reach or fall below 32 degrees. A freeze will occur when temperatures reach or fall below 32 degrees. While some plants are able to with stand a brief period at or just below 32 degrees, most plants will not survive once temperatures drop to or below 28 degrees (often refer to as a killing freeze). Below are several sites across western and north central Nebraska with the probability of a freeze or killing freeze based on reports from airport and cooperative observations. The probability is based on the chance a freeze/killing freeze will occur on or before the date. The interactive forecast is a graphical representation (a bar across time) of National Weather Service forecasted hourly temperatures over the next 7 days. If there is no bar then no freeze/killing freeze conditions are forecasted. The links are different for freeze conditions (equal or less than 32º) and killing freeze conditions (equal or less than 28º).

NORTH PLATTE
For a graphical representation (a bar across time) of potential freeze or
kllling freeze temperatures over the next 7 days for North Platte see links below:
(note: no bar = no freeze/killing freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for North Platte)
(click here for potential killing freeze (≤ 28º) temperature forecast for North Platte)

Probability of First Freeze (≤ 32º)
10% Chance	50% Chance	90% Chance
September 12	September 24	October 5

Probability of First Killing Freeze (≤ 28º)
10% Chance	50% Chance	90% Chance
September 17	October 4	October 20

Last 10 Years of First Freeze/Killing Freeze Dates
Year	≤ 32º		≤ 28º
2006	32º	September 18	28º	September 28
2007	32º	October 8	28º	October 19
2008	30º	October 13	27º	October 14
2009	31º	September 28	24º	October 3
2010	32º	October 12	27º	October 13
2011	27º	September 30	27º	September 30
2012	32º	October 1	28º	October 2
2013	30º	October 7	25º	October 16
2014	29º	October 3	27º	October 4
2015	28º	October 16	28º	October 16
2016	31º	October 6	?º	?

Earliest Recorded Freeze/Killing Freeze
≤ 32º		≤ 28º
Temp	Date	Temp	Date
26º	September 3, 1974	26º	September 3, 1974
32º	September 5, 1956	27º	September 6, 1956
31º	September 9, 1976	25º	September 16, 1903
Latest Recorded Freeze/Killing Freeze
≤ 32º		≤ 28º
Temp	Date	Temp	Date
30º	October 28, 1931	28º	November 9, 1883
30º	October 27, 1947	27º	November 6, 1940
32º	October 27, 1941	25º	November 6, 1902

VALENTINE
For a graphical representation (a bar across time) of potential freeze or
killing freeze temperatures over the next 7 days for Valentine see links below:
(note: no bar = no freeze/killing freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Valentine)
(click here for potential killing freeze (≤ 28º) temperature forecast for Valentine)

Probability of First Freeze (≤ 32º)
10% Chance	50% Chance	90% Chance
September 12	September 25	October 7

Probability of First Killing Freeze (≤ 28º)
10% Chance	50% Chance	90% Chance
September 19	October 4	October 19

Last 10 Years of First Freeze/Killing Freeze Dates
Year	≤ 32º		≤ 28º
2005	30º	October 6	26º	October 7
2006	26º	September 19	26º	September 19
2007	29º	September 14	27º	October 22
2008	31º	October 7	27º	October 14
2009	30º	September 29	27º	October 4
2010	29º	October 2	27º	October 19
2011	31º	September 22	27º	September 30
2012	32º	September 22	25º	October 5
2013	29º	October 16	24º	October 17
2014	30º	October 3	24º	October 4
2015	32º	October 15	24º	October 16
2016	27º	October 6	27º	October 6

Earliest Recorded Freeze/Killing Freeze
≤ 32º		≤ 28º
Temp	Date	Temp	Date
30º	September 3, 1974	28º	September 6, 1956
32º	September 5, 1956	25º	September 12 1902
32º	September 9, 1943	27º	September 14, 1904
Latest Recorded Freeze/Killing Freeze
≤ 32º		≤ 28º
Temp	Date	Temp	Date
25º	October 28, 1963	27º	November 2, 1940
30º	October 27, 1941	27º	November 2, 1924
31º	October 19, 1911	28º	October 29, 1931

BROKEN BOW
For a graphical representation (a bar across time) of potential freeze or
killing freeze temperatures over the next 7 days for Broken Bow see links below:
(note: no bar = no freeze/killing freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Broken Bow)
(click here for potential killing freeze (≤ 28º) temperature forecast for Broken Bow)

Probability of First Freeze (≤ 32º)
10% Chance	50% Chance	90% Chance
September 13	September 25	October 8

Probability of First Killing Freeze (≤ 28º)
10% Chance	50% Chance	90% Chance
September 15	October 1	October 17

Last 10 Years of First Freeze/Killing Freeze Dates
Year	≤ 32º		≤ 28º
2005	29º	September 29	28º	October 6
2006	25º	October 12	25º	October 12
2007	28º	October 22	28º	October 22
2008	32º	October 14	28º	October 16
2009	30º	September 29	22º	October 9
2010	32º	October 2	28º	October 18
2011	31º	September 23	27º	September 30
2012	30º	September 23	27º	October 2
2013	32º	October 16	25º	October 17
2014	31º	September 13	26º	October 18
2015	27º	October 16	27º	October 16
2016	32º	September 26	23º	October 12

IMPERIAL
For a graphical representation (a bar across time) of potential freeze or
killing freeze temperatures over the next 7 days for Imperial see links below:
(note: no bar = no freeze/killing freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Imperial)
(click here for potential killing freeze (≤ 28º) temperature forecast for Imperial)

Probability of First Freeze (≤ 32º)
10% Chance	50% Chance	90% Chance
September 21	October 4	October 18

Probability of First Killing Freeze (≤ 28º)
10% Chance	50% Chance	90% Chance
October 3	October 15	October 27

Last 10 Years of First Freeze/Killing Freeze Dates
Year	≤ 32º		≤ 28º
2006	32º	September 19	26º	October 18
2007	32º	October 16	27º	November 2
2008	32º	October 14	25º	October 26
2009	31º	October 3	22º	October 9
2010	30º	October 13	26º	October 29
2011	30º	October 19	27º	October 20
2012	22º	October 6	22º	October 6
2013	30º	October 15	28º	October 16
2014	31º	October 27	25º	October 28
2015	31º	October 16	24º	October 29
2016	31º	October 6	28º	October 7

Below is a list of numerous sites across western and north central Nebraska. The probability is base on the chance a freeze/killing freeze will occur on or before the date. The interactive forecast is a graphical representation (a bar across time) of National Weather Service forecasted hourly temperatures over the next 7 days. If there is no bar then no freeze/killing freeze conditions are forecasted. The links are different for killing freeze conditions (equal or less than 28º) and freeze conditions (equal or less than 32º).

Location	Probability of First Freeze (≤ 32º)			Probability of First Killing Freeze (≤ 28º)			Interactive Forecast
Location	10%	50%	90%	10%	50%	90%	≤32º / ≤28º
Ainsworth	Sep20	Oct07	Oct24	Sep28	Oct14	Oct30	≤32 / ≤28
Anselmo 2SE	Sep12	Sep24	Oct06	Sep18	Oct03	Oct18	≤32 / ≤28
Arnold	Sep13	Sep26	Oct09	Sep19	Oct04	Oct19	≤32 / ≤28
Arthur	Sep14	Sep25	Oct06	Sep18	Oct04	Oct20	≤32 / ≤28
Atkinson	Sep15	Sep30	Oct15	Sep21	Oct09	Oct26	≤32 / ≤28
Big Springs	Sep18	Oct01	Oct14	Sep30	Oct13	Oct26	≤32 / ≤28
Brewster	Sep13	Sep25	Oct08	Sep19	Oct05	Oct21	≤32 / ≤28
Burwell	Sep16	Sep28	Oct10	Sep22	Oct08	Oct24	≤32 / ≤28
Butte	Sep19	Oct03	Oct17	Sep26	Oct12	Oct29	≤32 / ≤28
Chambers	Sep15	Sep30	Oct15	Sep27	Oct12	Oct27	≤32 / ≤28
Crescent Lake National Wildlife Refuge	Sep09	Sep24	Oct08	Sep13	Sep30	Oct17	≤32 / ≤28
Curtis 3NNE	Sep13	Sep24	Oct06	Sep17	Oct04	Oct20	≤32 / ≤28
Ellsworth 15NNE	Sep10	Sep23	Oct07	Sep17	Oct01	Oct16	≤32 / ≤28
Enders Lake	Sep14	Sep27	Oct11	Sep22	Oct09	Oct26	≤32 / ≤28
Ewing	Sep14	Sep26	Oct09	Sep19	Oct05	Oct21	≤32 / ≤28
Gordon 6N	Sep10	Sep24	Oct08	Sep18	Oct05	Oct22	≤32 / ≤28
Hayes Center	Sep22	Oct07	Oct23	Sep30	Oct17	Nov02	≤32 / ≤28
Hay Springs	Sep12	Sep23	Oct05	Sep16	Oct01	Oct16	≤32 / ≤28
Hay Springs 12S	Sep10	Sep21	Oct02	Sep14	Sep27	Oct10	≤32 / ≤28
Hershey 5SSE	Sep16	Oct02	Oct17	Sep26	Oct12	Oct28	≤32 / ≤28
Kingsley Dam	Sep22	Oct09	Oct25	Oct04	Oct19	Nov03	≤32 / ≤28
Madrid	Sep16	Oct01	Oct16	Sep30	Oct13	Oct27	≤32 / ≤28
Medicine Creek Dam	Sep16	Sep29	Oct13	Sep28	Oct12	Oct26	≤32 / ≤28
Merriman	Sep09	Sep24	Oct08	Sep18	Oct04	Oct20	≤32 / ≤28
Mullen 21NW	Sep05	Sep22	Oct09	Sep16	Oct01	Oct15	≤32 / ≤28
Newport	Sep13	Oct01	Oct18	Sep26	Oct11	Oct27	≤32 / ≤28
Oconto	Sep15	Sep29	Oct14	Sep21	Oct06	Oct22	≤32 / ≤28
Ogallala	Sep13	Sep30	Oct16	Sep22	Oct09	Oct25	≤32 / ≤28
O'neill	Sep14	Sep28	Oct12	Sep23	Oct09	Oct25	≤32 / ≤28
Oshkosh	Sep13	Sep24	Oct05	Sep19	Oct03	Oct17	≤32 / ≤28
Purdum	Sep12	Sep25	Oct07	Sep20	Oct04	Oct19	≤32 / ≤28
Red Willow Dam	Sep16	Sep29	Oct11	Sep28	Oct11	Oct24	≤32 / ≤28
Rose 10WNW	Sep13	Sep25	Oct08	Sep17	Oct04	Oct21	≤32 / ≤28
Rushville	Sep11	Sep24	Oct06	Sep17	Oct03	Oct20	≤32 / ≤28
Springview	Sep15	Oct02	Oct19	Sep23	Oct10	Oct27	≤32 / ≤28
Tryon	Sep14	Sep26	Oct07	Sep18	Oct03	Oct17	≤32 / ≤28
Wallace 2W	Sep13	Sep26	Oct09	Sep19	Oct04	Oct19	≤32 / ≤28

Average First Freeze (Click on Image to Zoom)

Average First Killing Freeze (Click on Image to Zoom)

Page composition
Matt Masek
Images by Shawn Jacobs