Cooperative Observer Station Summary

DUNCAN (342660)
*

STEPHENS County

Climate Division: 8
*

Latitude: 3430N;     Longitude: 09758W

Elevation: 1124 ft
*

Precipitation Period of Record:

19361101-20040531 ( 94%)
*

Temperature Period of Record:

19361001-20040531 ( 94%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

50.8
28.1
39.2
1.39
1.5

February

56.8
32.6
44.5
1.82
1.0

March

65.0
40.9
52.6
2.74
.2

April

73.2
49.5
61.1
3.39
.0

May

80.9
58.8
69.9
5.15
.0

June

88.7
67.2
77.7
4.56
.0

July

94.7
71.8
82.8
2.49
.0

August

93.7
70.5
81.9
2.43
.0

September
85.9
63.0
74.2
3.86
.0

October

76.3
51.8
63.8
3.91
.0

November

62.6
40.0
51.0
2.31
.2

December

52.7
30.4
41.1
2.03
.3

Annual

73.4
50.4
61.6
35.38
3.1

Average Number of Days Per Month (1971-2000)

 

Temperature

Precipitation

Snowfall and Sleet

 

Max>100

Max>90

Max<32

Min<32

Min<0

any

meas

0.10"+

0.25"+

0.50"+

1.00"+

any

meas

0.50"+

1.00"+

Glazing

Jan
NA
NA
NA
NA
NA
6
5
3
2
1
*
1
1
1
*
1

Feb
0
*
2
13
*
6
5
3
2
1
*
1
1
*
*
1

Mar
NA
NA
NA
NA
NA
7
6
4
3
2
1
*
*
*
*
*

Apr
*
*
0
1
0
7
7
5
4
2
1
0
0
0
0
0

May
NA
NA
NA
NA
NA
9
8
6
4
3
2
0
0
0
0
0

Jun
NA
NA
NA
NA
NA
8
7
5
4
3
2
0
0
0
0
0

Jul
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0
0
0
0
0

Aug
5
25
0
0
0
7
6
4
3
2
1
0
0
0
0
0

Sep
1
12
0
0
0
7
7
5
4
2
1
0
0
0
0
0

Oct
*
2
0
*
0
7
7
5
3
2
1
*
*
*
0
*

Nov
0
0
*
7
0
7
6
4
3
2
1
*
*
*
*
*

Dec
NA
NA
NA
NA
NA
7
6
3
2
1
1
*
*
*
*
*

Ann
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
3
2
1
1
3

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January

76
4
.28
2.44

February

82
10
.54
2.66

March

89
17
1.09
3.64

April

93
30
1.28
4.91

May

98
42
2.12
8.45

June

102
54
2.10
6.22

July

107
61
.46
4.98

August

107
59
1.00
4.04

September
103
44
1.10
5.53

October

97
32
1.04
5.54

November

84
19
.63
3.57

December

78
9
.47
2.63

Annual

108
1
25.35
41.01

Monthly Extremes

 

Temperature (F) (1936-2004)

Precipitation (inches) (1936-2004)

Snowfall (1936-2004)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan
84
(25th, 1950)
-8
( 3rd, 1947)
4.83" (1946)
2.01" (30th, 1982)
15.9" (1966)
10.0" ( 7th, 1988)
13.0" ( 7th, 1988)

Feb
90
(23rd, 1996)
-2
( 2nd, 1985)
7.61" (1938)
3.42" (15th, 1938)
11.7" (1968)
6.3" (23rd, 1968)
5.0" (15th, 1951)

Mar
97
(31st, 1940)
2
(11th, 1948)
7.77" (1973)
2.98" (31st, 1963)
6.0" (1937)
6.0" (29th, 1937)
7.0" ( 6th, 1989)

Apr
100
(12th, 1972)
26
(12th, 1940)
9.59" (1990)
3.80" (24th, 2004)
1.0" (1938)
1.0" ( 7th, 1938)
1.0" ( 7th, 1938)

May
104
(22nd, 1939)
34
( 1st, 1960)
15.22" (1950)
9.85" (19th, 1955)
.0" (1961)
.0" ( 2nd, 1961)
.0" -

Jun
111
(28th, 1980)
47
( 1st, 1964)
12.44" (1962)
4.40" ( 5th, 1985)
.0" -
.0" -
.0" -

Jul
110
(28th, 1946)
55
( 8th, 1952)
8.02" (1960)
4.32" (14th, 1989)
.0" -
.0" -
.0" -

Aug
111
( 9th, 1970)
55
(26th, 1962)
8.54" (1966)
4.07" (18th, 1953)
.0" -
.0" -
.0" -

Sep
108
( 2nd, 1939)
36
(27th, 1942)
10.07" (1991)
4.43" (23rd, 1970)
.0" -
.0" -
.0" -

Oct
102
( 1st, 1977)
19
(31st, 1993)
15.70" (1941)
5.70" (30th, 1941)
.5" (1993)
.5" (30th, 1993)
.0" -

Nov
90
( 6th, 1945)
14
(15th, 1940)
6.81" (2000)
2.76" ( 5th, 1994)
5.5" (2001)
5.5" (29th, 2001)
3.0" (17th, 1980)

Dec
88
(24th, 1955)
-7
(24th, 1989)
6.92" (1991)
2.80" (20th, 1991)
9.6" (1958)
6.0" (29th, 1954)
6.0" (31st, 1958)

Annual
111
(Jun 28, 1980)
-8
(Jan 3, 1947)
15.70" (Oct 1941)
9.85" (May 19, 1955)
15.9" (Jan 1966)
10.0" (Jan 7, 1988)
13.0" (Jan 7, 1988)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

November   9
November   4
October  26

2 Years in 10
November  16
November   9
November   1

5 Years in 10
November  29
November  18
November   8

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

March  25
April   7
April  12

2 Years in 10
March  16
March  28
April   9

5 Years in 10
March   6
March  15
March  28

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10
240
223
205

8 Years in 10
248
228
211

5 Years in 10
273
247
224

2 Years in 10
289
263
239

1 Year in 10

303
273
246