047965 - SANTA ROSA, California

Latitude
38° 28´N
Longitude
122° 42´W
Elevation
167 feet

HCND

California
Help

Main
10 nearest HCND stations
13 miS :PETALUMA FIRE STN #2, CA
14 miNW :HEALDSBURG, CA
26 miESE :NAPA STATE HOSPITAL, CA
41 miE :VACAVILLE, CA
47 miSSE :BERKELEY, CA
51 miE :DAVIS EXP FARM 2WSW, CA
55 miNNW :UKIAH, CA
74 miSE :LIVERMORE, CA
76 miNNE :WILLOWS 6W, CA
76 miNE :MARYSVILLE, CA

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
17832
97.6%
7370
97.4%
TMIN
17870
97.8%
7341
97.1%
PRCP
13201
72.3%
5789
76.5%
SNOW
11942
65.4%
4890
64.7%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7370  by year
61.4°F
7.6°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>=74°F
528
-0.02
54
63
1.2
map
table
Extreme low events
Days with TMAX<=51°F
561
0.01
104
98
1.1
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>=74°F
528
0.37
113
28
4.0*
map
table
Extreme low events
Days with TMAX<=51°F
561
-0.43
84
191
2.3*
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>=74°F
528
53
78
1.5*
map
table
Extreme low events
Days with TMAX<=51°F
561
103
112
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
7341  by year
39.1°F
7.3°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<=29°F
692
-0.08
108
124
1.1
map
table
Extreme high events
Days with TMIN>=51°F
503
-0.09
70
88
1.3
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<=29°F
692
-0.69
65
252
3.9*
map
table
Extreme high events
Days with TMIN>=51°F
503
0.33
110
35
3.1*
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<=29°F
692
95
120
1.3
map
table
Extreme high events
Days with TMIN>=51°F
503
77
87
1.1
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
5789  by year
0.21"
   
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"
2626
0.46"
-0.01
453
444
1.0
map
table
Extreme events
Days with PRCP>0.78"
517
1.42"
-0.08
83
100
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"
2626
0.46"
-0.10
406
511
1.3*
map
table
Extreme events
Days with PRCP>0.78"
517
1.42"
-0.08
88
97
1.1
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"
2626
0.46"
514
425
1.2*
map
table
Extreme events
Days with PRCP>0.78"
517
1.42"
111
83
1.3
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
NDJFM
4890  by year
0.00"

No days with measureable SNOW during NDJFM over 1948-1997