111582 - CHICAGO, Illinois

Latitude
41° 53´N
Longitude
87° 38´W
Elevation
180 meters

COOP Midwest

Illinois
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Main
10 nearest COOP Midwest stations
0 miN :CHICAGO WB CITY 2, IL
1 miE :CHICAGO GRANT PARK, IL
1 miN :CHICAGO SAN DIST OFFICE, IL
5 miS :CHICAGO RACINE PUMP, IL
5 miWNW :CHICAGO SPRINGFLD PUMP, IL
6 miNNW :CHICAGO LAKEVIEW PUMP, IL
7 miNNW :CHICAGO N BRA PUMP STN, IL
7 miSSE :CHICAGO UNIVERSITY, IL
7 miWSW :CICERO, IL
8 miSW :STICKNEY W SIDE TREAT WKS, IL

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
5996
32.8%
2450
32.4%
TMIN
5996
32.8%
2450
32.4%
PRCP
5948
32.6%
2405
31.8%
SNOW
461
2.5%
31
0.4%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
2450  by year
39.1°F
12.2°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>=59°F
171
-0.14
12
22
1.8
map
table
Extreme low events
Days with TMAX<=21°F
167
-0.67
21
58
2.8*
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>=59°F
171
-0.51
6
29
4.8*
map
table
Extreme low events
Days with TMAX<=21°F
167
0.59
51
15
3.4*
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>=59°F
171
2
36
18.0*
map
table
Extreme low events
Days with TMAX<=21°F
167
13
34
2.6*
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
2450  by year
27.3°F
11.7°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<=7°F
174
-0.54
24
57
2.4*
map
table
Extreme high events
Days with TMIN>=43°F
184
-0.23
8
25
3.1*
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<=7°F
174
0.30
45
26
1.7
map
table
Extreme high events
Days with TMIN>=43°F
184
-0.35
7
24
3.4*
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<=7°F
174
12
35
2.9*
map
table
Extreme high events
Days with TMIN>=43°F
184
10
36
3.6*
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
2405  by year
0.07"
   
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"
804
0.21"
-0.23
101
173
1.7*
map
table
Extreme events
Days with PRCP>0.33"
160
0.65"
-0.11
26
31
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"
804
0.21"
-0.23
99
166
1.7*
map
table
Extreme events
Days with PRCP>0.33"
160
0.65"
-0.59
8
43
5.4*
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"
804
0.21"
36
233
6.5*
map
table
Extreme events
Days with PRCP>0.33"
160
0.65"
6
39
6.5*
map
table

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




SNOW     top of page

Data not shown:
Less than 5% of days have SNOW observations during NDJFM over 1948-1997

No days with measureable SNOW during NDJFM over 1948-1997