Fall First Freeze Information

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Fall First Freeze Information

Current Freeze Watches		Quick Jumps	Current Freeze Warnings
MRCC's First Freeze Graphics	Climatological First Freeze Graphics	7 Day Minimum Temperature Forecast	Freeze Data for Specific Cities	Growing Season Data for Specific Cities

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Midwestern Regional Cimate Center Graphics

Greatest Consecutive Hours <= 32°F: Last 30 Days

Midwestern Regional Cimate Center Graphics

First Freeze Data:
32° F

Dates of First 32°F Freeze: Wyoming

Days since Most Recent 32°F Freeze	Date of Most Recent 32°F Freeze

Over past 14 days Number of Days <= 32°F	Growing Degree Days (base 42°F) Since Most Recent 32°F Freeze

Midwestern Regional Cimate Center Graphics

First Hard Freeze Data:
28° F

Dates of First 28°F Freeze: Wyoming

Days since Most Recent 28°F Freeze	Date of Most Recent 28°F Freeze

Over past 14 days Number of Days <= 28°F	Growing Degree Days (base 42°F) Since Most Recent 28°F Freeze

Climatological First Freeze Graphics
Date of Median First 32° F Freeze	Date of Early First 32° F Freeze	Date of Late First 32° F Freeze

Date of Median First 28° F Freeze	Date of Early First 28° F Freeze	Date of Late First 28° F Freeze

7 Day Minimum Temperature Forecast
Tonight's Lows	Tomorrow Night's Lows	Night 3 Lows

Night 4 Lows	Night 5 Lows	Night 6 Lows

Night 7 Lows	6 - 10 Day Outlook	8 - 14 Day Outlook

More Information More Temperature and Precipitation Outlooks
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Climatological First Freeze Data

Location

County

Elev.
(ft)

Early

Average

Late

2017
33F-36F

2017
29F-32F

2017
<=28F

2016

2015

2014

2013

Clark 3NE
(1961-2017)

Park

4090

AUG 23
(2015)

SEP 16

OCT 15
(1963)

SEP 17

SEP 17

OCT 3

OCT 5

AUG 23

SEP 12

OCT 4

Cody Airport
(1915-2017)

Park

5100

AUG 21
(1945)

SEP 21

NOV 1
(1940)

SEP 16

SEP 22

OCT 3

OCT 5

OCT 28

SEP 11

OCT 3

(1916-2017)

Big Horn

4105

AUG 26
(1992)

SEP 19

OCT 17
(2015)

SEP 18

OCT 4

OCT 10

OCT 11

OCT 17

SEP 12

OCT 1

Greybull Airport

(1999-2017)

Big Horn

3935

SEP 12
(2014)

OCT 1

OCT 18
(2011)

OCT 3

OCT 4

OCT 4

OCT 11

OCT 16

SEP 12

OCT 4

Thermopolis
(1899-2017)

Hot Springs

4315

AUG 15
(1938)

SEP 22

OCT 19
(2007)

SEP 20

OCT 3

OCT 9

OCT 7

OCT 16

SEP 12

SEP 27

Worland Airport
(1960-2017)

Washakie

4245

SEP 2
(1974)

SEP 28

OCT 18
(1989)

SEP 17

SEP 20

OCT 3

OCT 6

OCT 12

SEP 12

SEP 28

Buffalo
(1899-2017)

Johnson

4670

AUG 15
(2012)

SEP 18

OCT 17
(1963)

SEP 17

SEP 20

OCT 3

OCT 5

OCT 12

SEP 11

SEP 27

Buffalo Airport
(1999-2017)

Johnson

4970

SEP 10
(2014)

OCT 1

OCT 19
(2011)

SEP 17

OCT 3

OCT 9

OCT 5

OCT 16

SEP 10

SEP 27

Kaycee
(1949-2017)

Johnson

4975

AUG 20
(1964)

SEP 15

OCT 16
(2015)

SEP 18

SEP 26

OCT 4

OCT 12

OCT 16

SEP 11

SEP 27

Moose
(1958-2017)

Teton

6470

AUG 1
(1995)

AUG 20

SEP 23
(1998)

AUG 16

SEP 17

SEP 17

AUG 3

AUG 23

AUG 2

SEP 1

Dubois
(1907-2017)

Fremont

6955

AUG 1
(1927)

AUG 22

SEP 21
(1990)

AUG 16

SEP 17

SEP 17

AUG 24

AUG 23

SEP 4

SEP 19

Riverton
(1907-2017)

Fremont

4950

AUG 7
(1912)

SEP 16

OCT 12
(2015)

SEP 18

SEP 26

OCT 3

OCT 5

OCT 12

SEP 12

SEP 27

Lander (town)
(1999-2017)

Fremont

5320

AUG 31
(2005)

SEP 14

SEP 20
(2013)

SEP 17

SEP 20

OCT 3

SEP 10

SEP 18

SEP 13

SEP 20

Lander Hunt Field
(1891-2017)

Fremont

5585

AUG 22
(1904)

SEP 21

OCT 25
(2010)

SEP 24

OCT 1

OCT 3

OCT 5

OCT 22

SEP 12

SEP 26

Jeffrey City
(1964-2017)

Fremont

6320

AUG 10
(2014)

SEP 10

OCT 5
(2001)

SEP 6

SEP 17

SEP 26

SEP 10

AUG 23

AUG 10

SEP 20

Casper Airport
(1939-2017)

Natrona

5320

AUG 23
(2015)

SEP 20

OCT 28
(1940)

SEP 6

SEP 27

OCT 4

SEP 10

AUG 23

SEP 12

SEP 20

Location

County

Elev.
(ft)

Early

Average

Late

2017
33F-36F

2017
29F-32F

2017
<=28F

2016

2015

2014

2013

Afton
(1957-2017)

Lincoln

6245

AUG 2
(1975)

AUG 22

SEP 24
(1963)

AUG 22

SEP 17

SEP 17

AUG 24

AUG 6

SEP 4

SEP 19

Bedford 3 SE
(1975-2017)

Lincoln

6425

AUG 1
(2000)

AUG 25

OCT 2
(1990)

AUG 22

AUG 22

SEP 17

AUG 4

AUG 23

SEP 4

SEP 19

Boulder Rearing Station
(1989-2017)

Sublette

6940

AUG 1
(1995)

AUG 20

SEP 19
(2013)

AUG 16

AUG 19

SEP 17

AUG 4

AUG 21

SEP 1

SEP 19

Big Piney Airport
(1998-2017)

Sublette

6975

AUG 4
(2016)

AUG 11

SEP 19
(2013)

AUG 16

AUG 22

SEP 17

AUG 4

AUG 23

SEP 1

SEP 19

Fossil Butte
(1990-2017)

Lincoln

6780

AUG 1
(1995)

AUG 22

SEP 19
(2013)

AUG 19

SEP 16

SEP 17

AUG 4

AUG 20

SEP 1

SEP 19

Green River
(1905-2017)

Sweetwater

6130

AUG 4
(1980)

SEP 10

OCT 23
(2015)

SEP 17

SEP 17

OCT 3

OCT 6

OCT 23

SEP 12

SEP 26

Rock Springs Apt.
(1948-2017)

Sweetwater

6760

SEP 1
(1973)

SEP 21

OCT 24
(1963)

SEP 17

SEP 17

OCT 1

OCT 3

OCT 22

SEP 11

SEP 26

*Month Day* = record earliest freeze *Month Day* = Record latest freeze

***Final Update for Fall First Freeze Season October 11, 2017***

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Growing Season Data
Location								County	Elev. (ft)	Longest Growing Season	Average Growing Season (Days)	Shortest Growing Season	2017		2016	2015	2014	2013
Clark 3 NE (1961-2017)								Park	4090	150 (2013)	118	71 (1976)	112		145	103	120	150
Deaver (1916-2017)								Big Horn	4105	165(2017)	121	86 (1992)	165		150	157	120	148
Thermopolis (1899-2017)								Hot Springs	4315	181 (2007)	125	65 (1938)	156		148	157	121	146
Worland (1960-2017)								Washakie	4245	176 (1989)	141	102 (1974 )	142		135	153	120	146
Buffalo (1899-2017)								Johnson	4670	156 (1998)	124	57 (1904)	121		138	146	117	143
Kaycee (1949-2017)								Johnson	4975	147 (2015)	114	78 (1964)	126		146	147	119	142
Moose (1958-2017)								Teton	6470	104 (1961)	50	0 (1995)	78		21	24	43	69
Dubois (1907-2017)								Fremont	6955	111 (2017)	58	0 (1995)	111		83	23	77	87
Riverton (1907-2017)								Fremont	4950	159 (1998)	116	67 (1989)	130		145	153	120	146
Lander (town) (1999-2017)								Fremont	5320	135 (2013)	102	81 (2000, 2005)	119		108	124	85	135
Lander Apt. (1891-2017)								Fremont	5585	170 (1987)	121	57 (1904)	133		145	155	106	145
Jeffrey City (1964-2017)								Fremont	6320	127 (2009)	99	53 (1985, 1993)	116		113	88	55	107
Casper Apt. (1939-2017)								Natrona	5320	165 (1963)	121	78 (1972)	129		100	94	119	107
Location								County	Elev. (ft)	Longest Growing Season	Average Growing Season (Days)	Shortest Growing Season	2017		2016	2015	2014	2013
Afton (1957-2017)								Lincoln	6245	111 (2017)	57	8 (2015)	111		57	8	76	87
Bedford 3 SE (1975-2017)								Lincoln	6425	109 (1990)	61	8 (1995)	84		38	24	76	86
Boulder Rearing Station (1989-2017)								Sublette	6940	86 (2013)	56	19 (2016)	48		19	21	60	86
Big Piney (1998-2017)								Sublette	6975	87 (2013)	45	2 (1987)	52		20	24	61	87
Fossil Butte (1990-2017)								Lincoln	6780	89 (2013)	51	0 (1995)	77		21	20	61	89
Green River (1905-2017)								Sweetwater	6130	149 (2015)	97	45 (1968)	119		145	149	117	144
Rock Springs Apt. (1948-2017)								Sweetwater	6760	155 (1963)	115	73 (1973)	95		132	150	119	145
XX (2017) = New record set in 2017. M = missing data during the period. Growing Season = Number of Days between last Spring Freeze and first Fall freeze (<= 32°F)															Top of Page

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