196783 - READING, Massachusetts

Latitude
42° 31´N
Longitude
71° 8´W
Elevation
27 meters

COOP Northeast

Massachusetts
Help

Main
10 nearest COOP Northeast stations
5 miSSE :SPOT POND, MA
6 miSW :LEXINGTON, MA
7 miSSW :ARLINGTON, MA
8 miWNW :BILLERICA, MA
8 miE :PEABODY, MA
8 miWSW :BEDFORD, MA
8 miNE :MIDDLETON, MA
9 miESE :WEST LYNN, MA
9 miS :CAMBRIDGE, MA
12 miSSE :BOSTON LOGAN INT'L ARPT, MA

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
13819
75.7%
5718
75.6%
TMIN
13818
75.7%
5717
75.6%
PRCP
13819
75.7%
5719
75.6%
SNOW
13820
75.7%
5719
75.6%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
5718  by year
41.6°F
11.6°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>=60°F
402
0.51
98
16
6.1*
map
table
Extreme low events
Days with TMAX<=25°F
434
-0.12
85
99
1.2
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>=60°F
402
-0.34
25
75
3.0*
map
table
Extreme low events
Days with TMAX<=25°F
434
0.39
116
58
2.0*
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>=60°F
402
75
59
1.3
map
table
Extreme low events
Days with TMAX<=25°F
434
59
53
1.1
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
5717  by year
21.7°F
11.8°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
417
-0.13
72
88
1.2
map
table
Extreme high events
Days with TMIN>=38°F
409
0.31
77
27
2.9*
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
417
0.33
111
65
1.7*
map
table
Extreme high events
Days with TMIN>=38°F
409
-0.17
39
73
1.9*
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
417
51
50
1.0
map
table
Extreme high events
Days with TMIN>=38°F
409
78
48
1.6*
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
5719  by year
0.14"
   
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"
2173
0.37"
0.03
348
332
1.0
map
table
Extreme events
Days with PRCP>0.64"
426
1.19"
-0.01
65
61
1.1
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"
2173
0.37"
0.02
378
359
1.1
map
table
Extreme events
Days with PRCP>0.64"
426
1.19"
0.33
103
44
2.3*
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"
2173
0.37"
408
222
1.8*
map
table
Extreme events
Days with PRCP>0.64"
426
1.19"
88
38
2.3*
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
5719  by year
0.40"
   
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"
1025
2.24"
-0.09
169
202
1.2
map
table
Extreme events
Days with SNOW>3.5"
198
7.50"
-0.13
29
35
1.2
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"
1025
2.24"
0.12
209
166
1.3*
map
table
Extreme events
Days with SNOW>3.5"
198
7.50"
0.35
56
30
1.9*
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"
1025
2.24"
173
102
1.7*
map
table
Extreme events
Days with SNOW>3.5"
198
7.50"
27
17
1.6
map
table

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