Weather History for Napa County, CA

Change the Weather History Date:

Month of October, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 98 °F 75 °F 60 °F
Mean Temperature 75 °F 62 °F 53 °F
Min Temperature 56 °F 48 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 12 4 0 125
Cooling Degree Days (base 65) 10 1 0 36
Growing Degree Days (base 50) 24 12 4 359
Dew Point  
Dew Point 63 °F 50 °F 32 °F
Precipitation  
Precipitation 0.98 in 0.04 in 0.00 in 1.36 in
Snowdepth - - - -
Wind  
Wind 23 mph 6 mph 0 mph
Gust Wind 32 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 29.99 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Oct. 23, 2012 Rise Set
Actual Time 7:26 AM PDT 6:19 PM PDT
Civil Twilight 6:59 AM PDT 6:46 PM PDT
Nautical Twilight 6:28 AM PDT 7:17 PM PDT
Astronomical Twilight 5:58 AM PDT 7:48 PM PDT
Moon 3:01 PM PDT (10/23) 1:29 AM PDT (10/23)
Length of Visible Light 11h 47m
Length of Day
10h 53m
Waxing Gibbous, 67% of the Moon is Illuminated
Oct 23
Waxing Gibbous
Oct 29
Full
Nov 6
Last Quarter
Nov 13
New
Nov 20
First Quarter

Weather History Calendar

Precipitation Actual month total 1.36 Average Month Total: 1.36
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
98 | 50 0.00
Average:
81 | 51 0.02
Clear
Actual:
98 | 51 0.00
Average:
79 | 51 0.01
Clear
Actual:
82 | 53 0.00
Average:
80 | 51 0.00
Partly Cloudy
Actual:
71 | 56 0.00
Average:
82 | 51 0.00
Partly Cloudy
Actual:
74 | 53 0.00
Average:
80 | 50 0.01
Fog
Actual:
74 | 43 0.00
Average:
81 | 49 0.00
Fog
Actual:
74 | 43 0.00
Average:
80 | 48 0.03
Clear
Actual:
72 | 42 0.00
Average:
79 | 49 0.00
Fog
Actual:
73 | 44 0.00
Average:
79 | 50 0.07
Rain
Actual:
73 | 43 0.02
Average:
79 | 50 0.04
Mostly Cloudy
Actual:
60 | 54 0.00
Average:
77 | 50 0.05
Mostly Cloudy
Actual:
62 | 44 0.00
Average:
78 | 50 0.03
Clear
Actual:
75 | 43 0.00
Average:
78 | 50 0.01
Fog
Actual:
75 | 52 0.00
Average:
77 | 49 0.02
Fog
Actual:
81 | 50 0.00
Average:
76 | 47 0.10
Clear
Actual:
87 | 54 0.00
Average:
77 | 48 0.04
Clear
Actual:
87 | 50 0.00
Average:
77 | 46 0.05
Scattered Clouds
Actual:
90 | 46 0.00
Average:
78 | 46 0.00
Partly Cloudy
Actual:
74 | 55 0.00
Average:
75 | 47 0.03
Fog
Actual:
75 | 50 0.00
Average:
75 | 49 0.04
Rain
Actual:
70 | 41 0.11
Average:
75 | 48 0.04
Rain
Actual:
67 | 51 0.98
Average:
74 | 48 0.02
Scattered Clouds
Actual:
64 | 45 0.00
Average:
75 | 49 0.06
Rain
Actual:
66 | 49 0.01
Average:
75 | 48 0.04
Rain
Actual:
71 | 44 0.01
Average:
74 | 49 0.12
Clear
Actual:
74 | 41 0.00
Average:
74 | 47 0.17
Clear
Actual:
80 | 47 0.00
Average:
73 | 46 0.02
Clear
Actual:
80 | 48 0.00
Average:
71 | 47 0.10
Fog
Actual:
74 | 50 0.00
Average:
71 | 47 0.13
Fog
Actual:
67 | 53 0.00
Average:
71 | 46 0.08
Rain
Actual:
64 | 55 0.23
Average:
72 | 45 0.03
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 98 74 50 51 43 32 77 45 12 29.98 29.91 29.84 10 10 10 14 4 16 0.00  
2 98 75 51 52 44 40 68 42 16 29.86 29.81 29.74 10 10 8 9 3 10 0.00  
3 82 68 53 58 52 45 86 61 36 29.97 29.85 29.78 10 10 10 22 9 26 0.00  
4 71 64 56 56 53 52 86 68 49 30.11 30.05 29.98 10 10 10 22 13 25 0.00  
5 74 64 53 55 52 50 89 69 49 30.13 30.09 30.03 10 10 10 18 10 23 0.00  
6 74 59 43 53 48 44 100 69 38 30.07 30.02 29.93 10 6 0 17 6 22 0.00 Fog
7 74 59 43 54 48 41 100 74 47 30.02 29.97 29.90 10 6 0 21 7 26 0.00 Fog
8 72 57 42 53 48 41 93 70 47 30.01 29.99 29.96 10 9 2 17 7 25 0.00  
9 73 59 44 54 48 44 100 72 44 30.03 29.98 29.90 10 8 0 15 5 17 0.00 Fog
10 73 58 43 54 49 43 92 71 49 29.94 29.90 29.83 10 10 9 18 7 22 0.02 Rain
11 60 57 54 52 51 49 93 81 69 29.96 29.91 29.86 10 10 6 16 9 20 0.00  
12 62 53 44 51 49 44 93 77 60 30.20 30.08 29.94 10 10 10 9 4 16 0.00  
13 75 59 43 56 48 41 96 70 44 30.29 30.21 30.14 10 10 10 14 4 21 0.00  
14 75 64 52 58 55 52 100 79 57 30.22 30.16 30.05 10 5 0 9 2 22 0.00 Fog
15 81 66 50 59 55 48 100 71 42 30.10 30.03 29.92 10 6 0 15 4 17 0.00 Fog
16 87 71 54 63 58 53 100 72 44 29.96 29.90 29.83 10 10 4 18 5 23 0.00  
17 87 69 50 55 47 32 93 54 14 29.90 29.85 29.78 10 10 10 10 4 13 0.00  
18 90 68 46 63 48 33 93 57 21 30.03 29.93 29.86 10 10 10 22 8 28 0.00  
19 74 65 55 61 58 54 97 79 61 30.04 29.97 29.89 10 10 10 18 9 21 0.00  
20 75 63 50 56 52 46 100 71 41 29.91 29.86 29.76 10 6 0 20 7 23 0.00 Fog
21 70 56 41 49 41 33 89 58 26 29.90 29.85 29.82 10 10 10 23 7 26 0.11 Rain
22 67 59 51 54 50 44 93 73 52 29.92 29.81 29.70 10 8 2 22 10 32 0.98 Rain
23 64 55 45 48 45 39 93 68 43 30.04 29.99 29.92 10 10 10 15 4 28 0.00  
24 66 58 49 52 49 43 93 69 44 30.19 30.08 30.00 10 9 4 16 5 21 0.01 Rain
25 71 58 44 53 49 40 93 65 37 30.27 30.22 30.18 10 9 2 14 5 17 0.01 Rain
26 74 58 41 49 42 37 89 59 29 30.22 30.14 30.07 10 10 10 8 2 17 0.00  
27 80 64 47 56 52 46 93 66 39 30.06 30.00 29.92 10 10 10 8 2 18 0.00  
28 80 64 48 58 53 47 100 70 39 30.00 29.96 29.92 10 8 1 10 3 28 0.00  
29 74 62 50 57 53 51 100 75 49 30.12 30.04 30.00 10 4 0 8 2 13 0.00 Fog
30 67 60 53 56 54 52 100 84 68 30.09 30.02 29.93 10 4 0 12 3 23 0.00 Fog
31 64 60 55 58 55 53 93 80 67 30.01 29.98 29.94 10 8 3 20 6 23 0.23 Rain