Back-to-Back Winter Storms Across the North-Central U.S.; Severe Weather Threat in the Midwest

A late-season winter storm continues to bring heavy snow, significant sleet, and disruptive icing to the Upper Midwest and western Great Lakes into the morning; and will be followed by another storm. Severe thunderstorms continue across the Midwest to the lower Great Lakes through tonight, before bringing a round of freezing rain and sleet Friday morning across northern New England. Read More >

Climatology of a
Late Spring Frost/Freeze
across Western and North Central Nebraska

Warm temperatures in March and April can kick start the farming/gardening season across western and north central Nebraska. However, typically we still have the potential for freezing temperatures into the month of May. Many plants are sensitive to frosting and/or freezing conditions. Frost can develop when the temperature reaches or drops below 36 degrees, while a freeze will occur when temperatures reach or fall below 32 degrees. Below are several sites across western and north central Nebraska with the probability of a frost or freeze based on reports from airport and cooperative observations. The probability is based on the chance a freeze/frost will occur after 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/frost conditions are forecasted. The links are different for frost conditions (equal or less than 36º) and freeze conditions (equal or less than 32º).

NORTH PLATTE
For a graphical representation (a bar across time) of potential freeze or
frost temperatures over the next 7 days for North Platte see links below:
(note: no bar = no frost/freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for North Platte)
(click here for potential frost (≤ 36º) temperature forecast for North Platte)

Probability of Last Freeze (≤ 32º)
90% Chance	50% Chance	10% Chance
April 25	May 9	May 23

Probability of Last Frost (≤ 36º)
90% Chance	50% Chance	10% Chance
May 2	May 18	June 2

Last 10 Years of Latest Freeze/Frost Dates
Year	≤ 32º		≤ 36º
2006	32º	May 16	35º	May 17
2007	30º	April 26	36º	June 8
2008	32º	May 14	35º	May 16
2009	31º	May 14	36º	May 16
2010	28º	May 14	28º	May 14
2011	30º	May 16	36º	May 26
2012	32º	May 14	32º	May 14
2013	22º	May 5	33º	June 2
2014	31º	May 17	31º	May 17
2015	27º	May 12	36º	May 30

VALENTINE
For a graphical representation (a bar across time) of potential freeze or
frost temperatures over the next 7 days for Valentine see links below:
(note: no bar = no frost/freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Valentine)
(click here for potential frost (≤ 36º) temperature forecast for Valentine)

Probability of Last Freeze (≤ 32º)
90% Chance	50% Chance	10% Chance
April 27	May 10	May 24

Probability of Last Frost (≤ 36º)
90% Chance	50% Chance	10% Chance
May 5	May 23	June 10

Last 10 Years of Latest Freeze/Frost Dates
Year	≤ 32º		≤ 36º
2006	27º	May 12	33º	May 16
2007	27º	April 20	35º	June 8
2008	32º	May 14	32º	May 14
2009	28º	May 16	28º	May 16
2010	30º	May 14	30º	May 14
2011	32º	May 26	32º	May 26
2012	32º	May 13	36º	May 25
2013	27º	May 6	27º	May 6
2014	31º	May 17	31º	May 17
2015	29º	May 12	34º	May 30

BROKEN BOW
For a graphical representation (a bar across time) of potential freeze or
frost temperatures over the next 7 days for Broken Bow see links below:
(note: no bar = no frost/freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Broken Bow)
(click here for potential frost (≤ 36º) temperature forecast for Broken Bow)

Probability of Last Freeze (≤ 32º)
90% Chance	50% Chance	10% Chance
April 29	May 12	May 25

Probability of Last Frost (≤ 36º)
90% Chance	50% Chance	10% Chance
May 6	May 22	June 7

Last 10 Years of Latest Freeze/Frost Dates
Year	≤ 32º		≤ 36º
2006	25º	April 26	36º	May 17
2007	28º	April 15	34º	April 24
2008	29º	May 11	33º	May 14
2009	32º	May 16	32º	May 16
2010	31º	May 14	36º	May 18
2011	28º	May 16	28º	May 16
2012	31º	April 23	33º	May 9
2013	29º	May 6	34º	May 12
2014	28º	May 17	28º	May 17
2015	31º	May 12	35º	May 21

IMPERIAL
For a graphical representation (a bar across time) of potential freeze or
frost temperatures over the next 7 days for Imperial see links below:
(note: no bar = no frost/freeze temperatures forecasted).
(click here for potential freeze (≤ 32º) temperature forecast for Imperial)
(click here for potential frost (≤ 36º) temperature forecast for Imperial)

Probability of Last Freeze (≤ 32º)
90% Chance	50% Chance	10% Chance
April 21	May 3	May 15

Probability of Last Frost (≤ 36º)
90% Chance	50% Chance	10% Chance
April 30	May 10	May 20

Last 10 Years of Latest Freeze/Frost Dates
Year	≤ 32º		≤ 36º
2006	25º	April 26	33º	May 12
2007	28º	April 15	33º	April 26
2008	32º	May 11	33º	May 14
2009	29º	April 11	36º	May 14
2010	32º	May 13	36º	May 14
2011	28º	May 3	33º	May 16
2012	31º	April 9	35º	May 9
2013	27º	May 5	36º	May 6
2014	32º	May 15	36º	May 17
2015	29º	April 22	34º	May 19

Below is a list of numerous sites across western and north central Nebraska. The probability is based on the chance a freeze/frost will occur after 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/frost conditions are forecasted. The links are different for frost conditions (equal or less than 36º) and freeze conditions (equal or less than 32º).

Location	Probability of Last Freeze (≤ 32º)			Probability of Last Frost (≤ 36º)			Interactive Forecast
Location	90%	50%	10%	90%	50%	10%	≤32º / ≤36º
Ainsworth	Apr21	May02	May13	Apr27	May10	May22	≤32 / ≤36
Anselmo 2SE	Apr26	May10	May23	May03	May26	Jun18	≤32 / ≤36
Arnold	Apr16	May10	Jun02	Apr26	May19	Jun11	≤32 / ≤36
Arthur	Apr28	May10	May22	May05	May21	Jun07	≤32 / ≤36
Atkinson	Apr20	May02	May13	Apr27	May08	May20	≤32 / ≤36
Big Springs	Apr24	May06	May18	Apr30	May15	May30	≤32 / ≤36
Brewster	Apr25	May07	May19	May03	May18	Jun03	≤32 / ≤36
Burwell	Apr22	May04	May17	Apr30	May12	May24	≤32 / ≤36
Butte	Apr19	May03	May16	Apr27	May08	May19	≤32 / ≤36
Chambers	Apr17	Apr30	May13	Apr26	May08	May20	≤32 / ≤36
Crescent Lake National Wildlife Refuge	Apr27	May11	May25	May06	May24	Jun11	≤32 / ≤36
Curtis 3NNE	Apr26	May09	May21	May01	May17	Jun02	≤32 / ≤36
Ellsworth 15NNE	Apr29	May15	May31	May10	May29	Jun16	≤32 / ≤36
Enders Lake	Apr24	May07	May20	Apr28	May18	Jun07	≤32 / ≤36
Ewing	Apr19	May03	May17	Apr28	May12	May26	≤32 / ≤36
Gordon 6N	Apr29	May15	Jun01	May09	May27	Jun14	≤32 / ≤36
Hayes Center	Apr19	May01	May14	Apr29	May09	May19	≤32 / ≤36
Hay Springs	May01	May15	May29	May11	May26	Jun11	≤32 / ≤36
Hay Springs 12S	May01	May15	May29	May14	May28	Jun11	≤32 / ≤36
Hershey 5SSE	Apr24	May06	May19	Apr30	May12	May25	≤32 / ≤36
Kingsley Dam	Apr14	Apr29	May13	Apr23	May06	May19	≤32 / ≤36
Madrid	Apr24	May05	May16	Apr29	May12	May24	≤32 / ≤36
Medicine Creek Dam	Apr20	May03	May15	Apr29	May12	May25	≤32 / ≤36
Merriman	Apr25	May10	May25	May02	May22	Jun11	≤32 / ≤36
Mullen 21NW	May01	May14	May27	May07	May29	Jun21	≤32 / ≤36
Newport	Apr19	May01	May13	Apr27	May10	May23	≤32 / ≤36
Ogallala	Apr23	May06	May18	May01	May12	May22	≤32 / ≤36
O'neill	Apr20	May03	May15	Apr27	May12	May27	≤32 / ≤36
Oshkosh	Apr26	May10	May23	May04	May20	Jun04	≤32 / ≤36
Purdum	Apr27	May11	May25	May04	May22	Jun08	≤32 / ≤36
Red Willow Dam	Apr22	May04	May17	May01	May14	May28	≤32 / ≤36
Rose 10WNW	Apr25	May06	May18	Apr30	May19	Jun06	≤32 / ≤36
Rushville	Apr30	May11	May22	May05	May23	Jun11	≤32 / ≤36
Springview	Apr20	May03	May16	Apr29	May12	May25	≤32 / ≤36
Tryon	Apr28	May10	May21	May05	May19	Jun02	≤32 / ≤36
Wallace 2W	Apr28	May09	May20	May02	May17	Jun02	≤32 / ≤36

Page composition
by Matt Masek
Updated 2016

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Back-to-Back Winter Storms Across the North-Central U.S.; Severe Weather Threat in the Midwest

Climatology of a Spring Frost/Freeze