Sea-Surface Temperature Anomalies: La Niña
OceansPhysical EnvironmentA composite of sea-surface temperature anomalies during La Niña from November to March during the following years: 1955, 1956, 1965, 1971, 1974, 1976, 1989, and 1999. When sea-surface temperatures in the tropical eastern Pacific drop below normal, it is known as a La Niña event.
NOAASea-surface temperature: Negative 0.5 to negative 1.5 (purple): Central Pacific regions. Negative 0.25 to 0.25 (light purple) are in the Arctic and Atlantic Ocean. 0.25 to 2.25 (red) are mostly in the North Atlantic Ocean and South Pacific Ocean.
-1.75 to -1.5 | -1.5 to -1.25 | -1.25 to -1.0 | -1.0 to -0.75 | -0.5 to -0.25 | -0.25 to 0.25 | 0.5 to 0.75 | 0 to 2°C | 3 to 5°C | 6 to 8°C | 9 to 11°C | 12 to 14°C | 15 to 17°C | 18 to 20°C | 21 to 23°C | 24 to 26°C | 27 to 29°C | over 30°C | No data | Arid and low water use | Low (<10%) | Low-medium (10-20%) | Medium-high (20-40%) | High (40-80%) | Extremely high (>80%) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 0.230% | 2.07% | 0.102% | 1.55% | 61.7% | 0.132% | 87.9% | 0.193% | 0.154% | 1.32% | |||||||||||||||
Arizona | 31.1% | 44.3% | 24.6% | 3.34% | 9.37% | 6.97% | 0.448% | 4.52% | |||||||||||||||||
Utah | 22.4% | 10.2% | 31.4% | 20.8% | 13.7% | 0.313% | 0.420% | 49.5% | |||||||||||||||||
Yukon | 1.02% | 5.15% | 93.8% | 0.923% | 99.0% | ||||||||||||||||||||
Northwest Territories | 0.878% | 21.6% | 7.94% | 10.5% | 59.1% | 0.342% | 3.62% | ||||||||||||||||||
District of Columbia | 100% | 100% | |||||||||||||||||||||||
Florida | 0.528% | 84.0% | 16.0% | 10.4% | 12.0% | 0.279% | 0.266% | 0.590% | |||||||||||||||||
Idaho | 52.5% | 45.2% | 2.21% | 0.772% | 13.8% | 28.4% | 8.83% | 44.9% | |||||||||||||||||
New Hampshire | 100% | 17.2% | 33.7% | 40.5% | 8.46% | ||||||||||||||||||||
Rhode Island | 4.64% | 62.8% | 37.2% | 0.183% | 86.5% | 6.09% | |||||||||||||||||||
Vermont | 100% | 7.27% | 88.3% | 4.41% | |||||||||||||||||||||
Washington | 0.523% | 23.4% | 27.9% | 35.5% | 72.6% | 3.37% | 5.42% | 0.287% | 6.53% | ||||||||||||||||
Wyoming | 57.2% | 36.6% | 6.22% | 21.7% | 0.541% | 70.3% | |||||||||||||||||||
Nunavut | 0.349% | 22.1% | 39.9% | 23.5% | 12.2% | 2.23% | 0.979% | 18.2% | |||||||||||||||||
Montana | 56.5% | 21.6% | 21.8% | 28.7% | 2.60% | 14.6% | 5.24% | 35.2% | |||||||||||||||||
Maine | 0.133% | 21.3% | 78.7% | 94.9% | 2.65% | 0.228% | 0.817% | ||||||||||||||||||
North Dakota | 37.6% | 62.4% | 7.38% | 3.22% | 4.45% | 0.249% | 9.67% | 36.7% | |||||||||||||||||
Kentucky | 100% | 76.6% | 17.7% | 5.68% | |||||||||||||||||||||
Nova Scotia | 0.869% | 100% | 0.182% | 80.1% | |||||||||||||||||||||
Virginia | 0.126% | 48.6% | 51.4% | 11.9% | 0.775% | 16.4% | 1.64% | ||||||||||||||||||
Delaware | 0.762% | 43.6% | 56.4% | 0.105% | 37.7% | 61.1% | |||||||||||||||||||
Prince Edward Island | 1.45% | 100% | 98.5% | ||||||||||||||||||||||
Saskatchewan | 1.64% | 24.6% | 49.4% | 17.2% | 1.04% | 4.25% | 59.9% | 2.62% | 2.54% | 2.67% | 0.868% | ||||||||||||||
Mississippi | 100% | 74.5% | 1.57% | 23.9% | |||||||||||||||||||||
West Virginia | 11.9% | 88.1% | 63.6% | 17.6% | 14.6% | ||||||||||||||||||||
Nebraska | 1.32% | 35.2% | 63.5% | 0.605% | 3.54% | 22.3% | 73.5% | ||||||||||||||||||
Texas | 0.183% | 7.04% | 70.2% | 22.7% | 4.07% | 3.41% | 2.84% | 1.94% | 22.5% | 2.71% | |||||||||||||||
Missouri | 100% | 45.5% | 14.9% | 0.131% | 5.37% | ||||||||||||||||||||
Louisiana | 0.120% | 100% | 54.5% | 20.6% | 5.75% | ||||||||||||||||||||
Hawaii | 2.11% | 0.444% | 1.11% | 0.206% | 0.177% | 1.57% | 97.3% | 2.67% | 7.82% | ||||||||||||||||
North Carolina | 0.319% | 26.8% | 73.2% | 0.116% | 12.2% | 54.7% | 3.14% | 0.982% | |||||||||||||||||
Oregon | 11.6% | 83.6% | 4.75% | 14.3% | 48.2% | 11.8% | 4.82% | 0.772% | 0.847% | ||||||||||||||||
New Brunswick | 0.522% | 73.4% | 26.6% | 99.5% | |||||||||||||||||||||
Alabama | 100% | 92.6% | 5.45% | 0.987% | |||||||||||||||||||||
New Mexico | 0.149% | 84.2% | 15.7% | 30.3% | 0.128% | 7.32% | 21.7% | ||||||||||||||||||
Kansas | 6.28% | 93.7% | 0.176% | 1.82% | 13.8% | 68.4% | |||||||||||||||||||
Wisconsin | 1.04% | 35.2% | 63.8% | 5.67% | 25.0% | 40.8% | 9.68% | ||||||||||||||||||
British Columbia | 0.181% | 85.4% | 13.9% | 0.706% | 92.0% | 1.55% | 0.285% | ||||||||||||||||||
Newfoundland and Labrador | 0.356% | 4.91% | 37.1% | 57.9% | 74.5% | ||||||||||||||||||||
New Jersey | 0.329% | 95.6% | 4.35% | 0.162% | 3.07% | 94.0% | 1.76% | ||||||||||||||||||
South Carolina | 2.93% | 97.1% | 0.748% | 24.6% | 36.2% | ||||||||||||||||||||
Michigan | 12.8% | 28.4% | 58.8% | 56.0% | 3.00% | 4.63% | 9.70% | ||||||||||||||||||
Alberta | 50.7% | 34.5% | 14.8% | 3.52% | 56.8% | 0.267% | 4.01% | 3.67% | 11.4% | ||||||||||||||||
Connecticut | 6.03% | 94.0% | 0.460% | 29.6% | 24.9% | 23.8% | 1.35% | ||||||||||||||||||
Pennsylvania | 99.0% | 1.04% | 1.42% | 27.8% | 49.9% | 3.96% | |||||||||||||||||||
Colorado | 14.4% | 39.4% | 44.0% | 2.22% | 0.795% | 9.40% | 85.2% | ||||||||||||||||||
Nevada | 15.3% | 31.5% | 45.5% | 7.66% | 8.21% | 0.731% | 1.40% | 0.413% | 2.80% | 24.0% | |||||||||||||||
Massachusetts | 1.78% | 98.7% | 1.07% | 0.220% | 0.206% | 0.166% | 33.6% | 8.30% | 30.7% | ||||||||||||||||
Georgia | 100% | 8.71% | 47.0% | 37.9% | |||||||||||||||||||||
New York | 0.105% | 60.0% | 40.0% | 25.4% | 5.89% | 56.3% | 5.19% | 0.401% | |||||||||||||||||
Maryland | 0.874% | 74.4% | 25.6% | 0.151% | 4.45% | 64.3% | 1.05% | 8.49% | |||||||||||||||||
Québec | 0.107% | 1.08% | 22.4% | 41.4% | 22.6% | 3.88% | 99.1% | 0.240% | |||||||||||||||||
Manitoba | 32.7% | 26.1% | 29.9% | 11.4% | 0.656% | 83.1% | 11.7% | 2.04% | 1.39% | ||||||||||||||||
Oklahoma | 100% | 11.4% | 5.60% | 4.28% | 17.9% | 30.0% | |||||||||||||||||||
Tennessee | 100% | 90.1% | 5.50% | ||||||||||||||||||||||
Ontario | 10.3% | 11.0% | 55.9% | 3.50% | 2.10% | 97.2% | 1.67% | 1.13% | |||||||||||||||||
California | 0.105% | 0.261% | 27.4% | 0.828% | 11.3% | 14.3% | 0.918% | 0.688% | 12.5% | 0.232% | 17.8% | 2.26% | 1.00% | ||||||||||||
Arkansas | 100% | 12.6% | 46.8% | 33.2% | 6.01% | ||||||||||||||||||||
South Dakota | 75.3% | 24.7% | 32.7% | 3.47% | 37.3% | 22.0% | |||||||||||||||||||
Ohio | 58.5% | 41.5% | 3.42% | 0.721% | 29.0% | ||||||||||||||||||||
Indiana | 29.9% | 70.1% | 0.434% | 1.19% | 8.61% | 4.78% | |||||||||||||||||||
Minnesota | 4.10% | 41.1% | 46.2% | 8.52% | 21.0% | 3.81% | 13.1% | 23.4% | 22.0% | ||||||||||||||||
Iowa | 11.6% | 88.4% | 26.6% | 12.5% | 44.0% | 16.3% | 0.628% | ||||||||||||||||||
Illinois | 23.5% | 76.5% | 30.9% | 0.187% | 44.1% | 9.75% | |||||||||||||||||||