The 2025 Atlantic hurricane season has ended. It began on June 1 and ends on November 30. So far, 13 tropical cyclones have formed, all becoming named storms. Five reached hurricane strength, and four became major hurricanes. The season’s ACE index stands at about 130.2, showing above- average activity.

The season started late with Tropical Storm Andrea on June 23, followed by Barry and Chantal, all of which were short-lived due to Saharan dust and unfavorable conditions. Activity increased in August with Hurricane Erin, the first Category 5 storm, followed by a rare three-week lull during peak season. Hurricane Gabrielle revived activity in mid-September, and later that month, Humberto and Imelda formed, both powerful, with Humberto also reaching Category 5.

In October, storms Jerry, Karen, and Lorenzo formed, culminating in Hurricane Melissa, which became the third Category 5 hurricane and one of the strongest Atlantic hurricanes on record. Overall, 2025 is notable for its late start, long midseason lull, and three Category 5 hurricanes, second only to 2005.

In 2025, in the Atlantic basin, we observed the following:

• 1 Subtropical storm (Karen)
• 7 Tropical storms (Andrea, Barry, Chantal, Dexter, Fernand, Jerry, and Lorenzo)
• 1 Category 2 hurricane (Imelda)
• 1 Category 4 hurricane (Gabrielle)
• 3 Category 5 hurricanes (Erin, Humberto, and Melissa)

The total damage from the Atlantic storms is over $555 million, and more than 99 deaths. The 2025 Pacific hurricane season began on May 15 in the Eastern Pacific and June 1 in the Central Pacific, ending on November 30. By late October, 20 tropical cyclones had formed: 18 in the Eastern Pacific and 2 in the Central Pacific, all of which became named storms. Eleven reached hurricane strength, and four became major hurricanes. The season’s ACE index was about 126.7, indicating strong overall activity.

The season began early with Tropical Storm Alvin on May 28, followed by several June storms, including Hurricane Erick, the earliest major hurricane on record to make landfall in Mexico. Flossie, Dalila, and Erick became the earliest fourth, fifth, and sixth named storms since 1960. In late July, Hurricane Iona and Tropical Storm Keli formed in the Central Pacific, followed by Hurricane Gil. August saw four more systems, Henriette, Ivo, Juliette, and Kiko, mostly staying offshore. September brought Lorena, Mario, Narda, and Octave, while October featured Hurricane Priscilla, Tropical Storm Raymond, and Sonia, which brought heavy rain to parts of Mexico and the U.S. Southwest.

Overall, the 2025 season was active and early, marked by record-setting storm formation and several powerful hurricanes affecting Mexico and the Pacific basin. In 2025, in the Pacific basin, we observed the following:

• 9 Tropical storms (Alvin, Cosme, Dalila, Keli, Ivo, Juliette, Mario, Raymond, and Sonia)
• 5 Category 1 hurricanes (Barbara, Gil, Henriette, Lorena, and Octave)
• 2 Category 2 hurricanes (Narda and Priscilla)
• 2 Category 3 hurricanes (Flossie and Iona)
• 2 Category 4 hurricanes (Erick and Kiko)

The total damage from the storms in the Pacific base is over $325 million, and 37 deaths. Along with the end of the 2025 Hurricane Season, we have finished tracking five of the most popular weather forecast websites for our annual Hurricane Season Report.

For this Performance Report, we at WebSitePulse monitoring service measured the websites' home pages' performance and complete interaction with the website as an end-user would do. The report measures Uptime and Response Time as the most critical metrics for the availability and reliability of all web-based operations. Measurements of multi-step online transactions were taken every 15 minutes simultaneously from 3 monitoring locations: Trumbull, CT (US East Coast), San Francisco, CA (US West Coast), and Chicago, IL (US Central).

The overall uptime and speed of the monitored weather websites were quite good during the whole period, except for trackthetropics.com. We found that the daily average response time for all monitored websites was 0.570 sec. which is 0.013 sec. faster than last year's. The daily average responses by location are as follows:

• Trumbull, CT (US East Coast) – 0.562 sec
• San Francisco, CA (US West Coast) – 0.678 sec
• Chicago, IL (US Central) – 0.469 sec

This year, The Red Cross (redcross.org) was the speed leader among the five monitored websites, with an average response time of 0.199 seconds, followed by nhc.noaa.gov (0.403 sec). At the bottom of the table, once again, was weather.com, with an average response time of 0.798 seconds, which may have frustrated many visitors.

Compared to last year's performance, the two leaders increased their response time by an average of 0.075 seconds, while the slowest site this year performed on average 0.397 seconds faster than in the 2024 Hurricane Season monitored period.

The daily average uptime for the five websites for the 2025 hurricane season was 99.996%. The daily average uptime by location is as follows:

• Trumbull, CT (US East Coast) – 99.994%
• San Francisco, CA (US West Coast) – 99.996%
• Chicago, IL (US Central) – 99.997%

This year's uptime winners are redcross.org and nesdis.noaa.gov, which were available without interruption, closely followed by nhc.noaa.gov with 99.999% uptime. At the bottom of the availability chart, this year, floridadisaster.org had 99.982%, indicating it was not accessible to visitors for more than 23 minutes during the monitored period.