Climate Saint Helena - California
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 59 | 62 | 67 | 72 | 78 | 85 |
| Average low in ºF Av. low Lo | 40 | 42 | 44 | 46 | 51 | 54 |
| Days with precipitation Days precip. DP | 13 | 10 | 10 | 5 | 3 | 0 |
| Av. precipitation in inch Av. precip. Pre. | 6.47 | 6.71 | 4.98 | 1.97 | 1.31 | 0.35 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 89 | 87 | 78 | 66 | 58 |
| Average low in ºF Av. low Lo | 56 | 56 | 54 | 49 | 44 | 40 |
| Days with precipitation Days precip. DP | 0 | 0 | 0 | 3 | 8 | 12 |
| Av. precipitation in inch Av. precip. Pre. | 0.01 | 0.04 | 0.06 | 1.65 | 3.24 | 7.18 |
Saint Helena Climate Graph - California Climate Chart
Daily normals Saint Helena - California - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 56.6 | 37.8 | 0.24 | 0.24 | 0.00 | 0.00 |
| 2 Jan | 56.7 | 37.8 | 0.47 | 0.47 | 0.00 | 0.00 |
| 3 Jan | 56.7 | 37.8 | 0.71 | 0.71 | 0.00 | 0.00 |
| 4 Jan | 56.7 | 37.9 | 0.91 | 0.91 | 0.00 | 0.00 |
| 5 Jan | 56.8 | 37.9 | 1.14 | 1.14 | 0.00 | 0.00 |
| 6 Jan | 56.8 | 38.0 | 1.38 | 1.38 | 0.00 | 0.00 |
| 7 Jan | 56.9 | 38.0 | 1.57 | 1.57 | 0.00 | 0.00 |
| 8 Jan | 57.0 | 38.1 | 1.81 | 1.81 | 0.00 | 0.00 |
| 9 Jan | 57.0 | 38.1 | 2.05 | 2.05 | 0.00 | 0.00 |
| 10 Jan | 57.1 | 38.2 | 2.24 | 2.24 | 0.00 | 0.00 |
| 11 Jan | 57.2 | 38.3 | 2.48 | 2.48 | 0.00 | 0.00 |
| 12 Jan | 57.3 | 38.3 | 2.76 | 2.76 | 0.00 | 0.00 |
Weather history Saint Helena - September 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | 95.0 | 57.0 | 0.00 | - | - |
| 02 Sep | 95.0 | 57.0 | 0.00 | - | - |
| 03 Sep | 90.0 | 55.0 | 0.00 | - | - |
| 04 Sep | 90.0 | 55.0 | 0.00 | - | - |
| 05 Sep | - | - | 0.00 | - | - |
| 06 Sep | 90.0 | 55.0 | 0.00 | - | - |
| 07 Sep | 90.0 | 55.0 | 0.00 | - | - |
| 08 Sep | 82.9 | 57.9 | 0.00 | - | - |
| 09 Sep | 84.0 | 57.0 | 0.00 | - | - |
| 10 Sep | 84.0 | 51.1 | 0.00 | - | - |
| 11 Sep | 86.0 | 51.1 | 0.00 | - | - |
| 12 Sep | 93.9 | 51.1 | 0.00 | - | - |
| 13 Sep | 97.0 | 57.0 | 0.00 | - | - |
| 14 Sep | 97.0 | 57.0 | 0.00 | - | - |
| 15 Sep | 97.0 | 52.0 | 0.00 | - | - |
| 16 Sep | 97.0 | 52.0 | 0.00 | - | - |
| 17 Sep | 79.0 | 52.0 | 0.00 | - | - |
| 18 Sep | 79.0 | 52.0 | 0.00 | - | - |
| 19 Sep | 79.0 | 51.1 | 0.00 | - | - |
| 20 Sep | 84.0 | 52.0 | 0.00 | - | - |
| 21 Sep | 88.0 | 54.0 | 0.00 | - | - |
| 22 Sep | - | - | 0.00 | - | - |
| 23 Sep | 88.0 | 48.0 | 0.00 | - | - |
| 24 Sep | 99.0 | 48.0 | 0.00 | - | - |
| 25 Sep | 99.0 | 48.0 | 0.00 | - | - |
| 26 Sep | 98.1 | 62.1 | 0.00 | - | - |
| 27 Sep | - | - | 0.00 | - | - |
| 28 Sep | 71.1 | 50.0 | 0.00 | - | - |
| 29 Sep | 71.1 | 35.1 | 0.00 | - | - |
| 30 Sep | 71.1 | 35.1 | 0.00 | - | - |
Past weather Saint Helena
| Sep 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 88.0 ºF | 59 ºF | |
| Average low temperature Av. low temp. | 52.1 ºF | 40 ºF | |
| Total precipitation Total precip. | 0.00 inch | 6.47 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 99.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 71.1 ºF | - | |
| Highest min temperature Highest min temp. | 62.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 35.1 ºF | - | |
Past weather September 2019 incomplete - Missing data
Geo Saint Helena - California
| Country | United States | |
|---|---|---|
| State | California | |
| County | Napa | |
| City | Saint Helena | |
| Zip Code | 94574 | |
| Longitude | -122.47 dec. degr. | |
| Latitude | 38.51 dec. degr. | |
| Altitude - Elevation | 246ft | |
| ICAO | - | |
| IATA | - |
Date and Time Saint Helena - California
| Local Time | 12:31 AM | |
|---|---|---|
| Sunrise | 06:51 AM | |
| Sunset | 07:17 PM | |
| Day/Night | Night | |
| Timezone | (UTC-08:00) Pacific Time (US & Canada) | |
| Timezone DB | America - Los Angeles |
Map of Saint Helena - California
Saint Helena weather averages
| Annual high temperature | 74ºF |
| Annual low temperature | 48ºF |
| Days per year with precip. | 64 days |
| Average annual precip. | 33.97 inch |
Station Data
Monthly averages Saint Helena
Longitude: -122.47, Latitude: 38.51
Average weather Saint Helena, CA - 94574
Monthly: 1991-2020 normals
History: 2007-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...