Climate Saint Helena - California
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 58 | 62 | 67 | 72 | 79 | 85 |
| Average low in ºF Av. low Lo | 39 | 41 | 43 | 45 | 49 | 53 |
| Av. precipitation in inch Av. precip. Pre. | 6.94 | 7.36 | 5.11 | 1.98 | 1.30 | 0.16 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 89 | 86 | 78 | 65 | 57 |
| Average low in ºF Av. low Lo | 54 | 55 | 52 | 48 | 43 | 38 |
| Av. precipitation in inch Av. precip. Pre. | 0.00 | 0.05 | 0.28 | 1.85 | 4.49 | 7.12 |
Saint Helena experiences a hot-summer climate with dry summers and wetter winters. Summers are hot, while winters are cool and bring frequent rain or drizzle. This creates a strong seasonal contrast, making the area fairly wet overall due to abundant cooler-season precipitation.
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 |
| 13 Jan | 57.4 | 38.4 | 2.99 | 2.99 | 0.00 | 0.00 |
| 14 Jan | 57.4 | 38.4 | 3.23 | 3.23 | 0.00 | 0.00 |
| 15 Jan | 57.5 | 38.5 | 3.43 | 3.43 | 0.00 | 0.00 |
| 16 Jan | 57.6 | 38.6 | 3.66 | 3.66 | 0.00 | 0.00 |
| 17 Jan | 57.7 | 38.6 | 3.90 | 3.90 | 0.00 | 0.00 |
| 18 Jan | 57.8 | 38.7 | 4.09 | 4.09 | 0.00 | 0.00 |
| 19 Jan | 58.0 | 38.8 | 4.29 | 4.29 | 0.00 | 0.00 |
| 20 Jan | 58.1 | 38.8 | 4.53 | 4.53 | 0.00 | 0.00 |
| 21 Jan | 58.2 | 38.9 | 4.72 | 4.72 | 0.00 | 0.00 |
| 22 Jan | 58.3 | 39.0 | 4.96 | 4.96 | 0.00 | 0.00 |
| 23 Jan | 58.4 | 39.0 | 5.16 | 5.16 | 0.00 | 0.00 |
| 24 Jan | 58.6 | 39.1 | 5.39 | 5.39 | 0.00 | 0.00 |
| 25 Jan | 58.7 | 39.2 | 5.59 | 5.59 | 0.00 | 0.00 |
| 26 Jan | 58.8 | 39.2 | 5.83 | 5.83 | 0.00 | 0.00 |
| 27 Jan | 59.0 | 39.3 | 6.02 | 6.02 | 0.00 | 0.00 |
| 28 Jan | 59.1 | 39.4 | 6.26 | 6.26 | 0.00 | 0.00 |
| 29 Jan | 59.3 | 39.5 | 6.46 | 6.46 | 0.00 | 0.00 |
| 30 Jan | 59.4 | 39.5 | 6.69 | 6.69 | 0.00 | 0.00 |
| 31 Jan | 59.6 | 39.6 | 6.93 | 6.93 | 0.00 | 0.00 |
Weather history Saint Helena - April 2023
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Apr | 59.0 | 37.0 | 0.00 | - | - |
| 02 Apr | 63.0 | 36.0 | 0.00 | - | - |
| 03 Apr | 60.1 | 37.9 | 0.00 | - | - |
| 04 Apr | 64.0 | 35.1 | 0.00 | - | - |
| 05 Apr | 64.0 | 35.1 | 0.00 | - | - |
| 06 Apr | 63.0 | 39.0 | 0.00 | - | - |
| 07 Apr | 60.1 | 48.9 | 0.50 | - | - |
| 08 Apr | 66.9 | 45.0 | 0.00 | - | - |
| 09 Apr | 78.1 | 42.1 | 0.00 | - | - |
| 10 Apr | 78.1 | 46.9 | 0.00 | - | - |
| 11 Apr | 78.1 | 42.1 | 0.00 | - | - |
| 12 Apr | 78.1 | 42.1 | 0.00 | - | - |
| 13 Apr | 72.0 | 44.1 | 0.00 | - | - |
| 14 Apr | 69.1 | 39.0 | 0.00 | - | - |
| 15 Apr | 68.0 | 43.0 | 0.00 | - | - |
| 16 Apr | 71.1 | 39.9 | 0.00 | - | - |
| 17 Apr | 64.0 | 43.0 | 0.00 | - | - |
| 18 Apr | 61.0 | 39.0 | 0.00 | - | - |
| 19 Apr | 71.1 | 39.0 | 0.00 | - | - |
| 20 Apr | 77.0 | 39.0 | 0.00 | - | - |
| 21 Apr | 84.0 | 50.0 | 0.00 | - | - |
| 22 Apr | 84.9 | 54.0 | 0.00 | - | - |
| 23 Apr | 84.9 | 55.0 | 0.00 | - | - |
| 24 Apr | 82.9 | 50.0 | 0.00 | - | - |
| 25 Apr | 88.0 | 46.0 | 0.00 | - | - |
| 26 Apr | 89.1 | 46.9 | 0.00 | - | - |
| 27 Apr | 91.0 | 51.1 | 0.00 | - | - |
| 28 Apr | 90.0 | 52.0 | 0.00 | - | - |
| 29 Apr | 91.0 | 48.9 | 0.00 | - | - |
| 30 Apr | 77.0 | 46.0 | 0.00 | - | - |
Past weather Saint Helena
| Apr 23 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 74.3 ºF | 58 ºF | |
| Average low temperature Av. low temp. | 43.8 ºF | 39 ºF | |
| Total precipitation Total precip. | 0.50 inch | 6.94 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 91.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 59.0 ºF | - | |
| Highest min temperature Highest min temp. | 55.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 35.1 ºF | - | |
Past weather April 2023 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 | 05:38 PM | |
|---|---|---|
| Sunrise | 05:43 AM | |
| Sunset | 08:37 PM | |
| Day/Night | Day | |
| Timezone | (UTC-08:00) Pacific Time (US & Canada) | |
| Timezone DB | America - Los Angeles |
Map of Saint Helena - California
USGS National Map — Open interactive map
Saint Helena weather averages
| Annual high temperature | 74ºF |
| Annual low temperature | 47ºF |
| Average annual precip. | 36.64 inch |
Station Data
Monthly averages Saint Helena
Longitude: -122.47, Latitude: 38.51
Average weather Saint Helena, CA - 94574
Monthly: 1991-2020 normals
History: 2007-2023
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...