112193 - DECATUR, Illinois

Latitude
39° 49´N
Longitude
89° 1´W
Elevation
189 meters

COOP Midwest

Illinois
Help

Main
10 nearest COOP Midwest stations
13 miS :MOWEAQUA, IL
15 miN :MAROA 1 W, IL
20 miNW :MOUNT PULASKI, IL
22 miN :CLINTON 1 SSW, IL
22 miE :HAMMOND, IL
24 miSW :TAYLORVILLE, IL
27 miSW :KINCAID, IL
27 miENE :MONTICELLO NO 2, IL
28 miENE :MONTICELLO, IL
29 miNW :LINCOLN, IL

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
17826
97.6%
7374
97.5%
TMIN
17821
97.6%
7377
97.5%
PRCP
17904
98.0%
7409
98.0%
SNOW
17585
96.3%
7081
93.6%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7374  by year
43.6°F
13.9°F
   
overall
NAM
PNA
CTI

TMAX and NAM    Help
scatterplot
days
by month
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Extreme high events
Days with TMAX>=66°F
494
0.27
86
41
2.1*
map
table
Extreme low events
Days with TMAX<=24°F
546
-0.45
75
157
2.1*
map
table

TMAX and PNA    Help
scatterplot
days
by month
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Extreme high events
Days with TMAX>=66°F
494
-0.43
32
103
3.2*
map
table
Extreme low events
Days with TMAX<=24°F
546
0.32
138
79
1.7*
map
table

TMAX and CTI    Help
days
by month
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Extreme high events
Days with TMAX>=66°F
494
75
102
1.4
map
table
Extreme low events
Days with TMAX<=24°F
546
57
77
1.4
map
table

TMAX under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




TMIN     Help     top of page

TMIN
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7377  by year
25.3°F
13.2°F
   
overall
NAM
PNA
CTI

TMIN and NAM    Help
scatterplot
days
by month
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Extreme low events
Days with TMIN<=3°F
507
-0.46
69
142
2.1*
map
table
Extreme high events
Days with TMIN>=44°F
510
0.28
97
47
2.1*
map
table

TMIN and PNA    Help
scatterplot
days
by month
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Extreme low events
Days with TMIN<=3°F
507
0.41
152
73
2.1*
map
table
Extreme high events
Days with TMIN>=44°F
510
-0.57
14
112
8.0*
map
table

TMIN and CTI    Help
days
by month
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Extreme low events
Days with TMIN<=3°F
507
46
60
1.3
map
table
Extreme high events
Days with TMIN>=44°F
510
96
94
1.0
map
table

TMIN under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




PRCP (total liquid water equivalent)     Help     top of page

PRCP
observations
mean
   
Distribution
during extreme days of
NDJFM
7409  by year
0.09"
   
overall
NAM
PNA
CTI

PRCP and NAM    Help
scatterplot
days
by month
mean
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Observed events
Days with PRCP>0.00"
2372
0.27"
-0.02
370
394
1.1
map
table
Extreme events
Days with PRCP>0.44"
470
0.85"
0.09
87
74
1.2
map
table

PRCP and PNA    Help
scatterplot
days
by month
mean
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Observed events
Days with PRCP>0.00"
2372
0.27"
-0.16
344
464
1.3*
map
table
Extreme events
Days with PRCP>0.44"
470
0.85"
-0.52
36
121
3.4*
map
table

PRCP and CTI    Help
days
by month
mean
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Observed events
Days with PRCP>0.00"
2372
0.27"
351
415
1.2*
map
table
Extreme events
Days with PRCP>0.44"
470
0.85"
80
70
1.1
map
table

PRCP under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




SNOW     Help     top of page

SNOW
observations
mean
   
Distribution
during extreme days of
NDJFM
7081  by year
0.14"
   
overall
NAM
PNA
CTI

SNOW and NAM    Help
scatterplot
days
by month
mean
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Observed events
Days with SNOW>0.0"
574
1.76"
-0.22
87
127
1.5*
map
table
Extreme events
Days with SNOW>3.0"
89
5.04"
-0.33
14
21
1.5
map
table

SNOW and PNA    Help
scatterplot
days
by month
mean
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Observed events
Days with SNOW>0.0"
574
1.76"
0.20
129
81
1.6*
map
table
Extreme events
Days with SNOW>3.0"
89
5.04"
-0.00
19
17
1.1
map
table

SNOW and CTI    Help
days
by month
mean
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Observed events
Days with SNOW>0.0"
574
1.76"
50
92
1.8*
map
table
Extreme events
Days with SNOW>3.0"
89
5.04"
9
12
1.3
map
table

SNOW under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI