1月份 :: January 14日 / 14th: 非洲東南部受洪澇侵襲，於馬拉維、莫桑比克及馬達加斯加等國造成超過 225 人死亡，數十萬人受災。Floods in southeastern Africa claimed more than 225 lives in Malawi, Mozambique and Madagascar. Hundreds of thousands of people were displaced as a result. 19日 / 19th: 珠三角地區多處出現雨幡洞現象，香港廣泛地區亦能看到。The fallstreak hole phenomenon was generally visible within the Pearl River Delta region including Hong Kong. 22日 / 22nd: 因應核武的進一步發展及各國缺乏行動應對全球暖化，末日鐘被調快兩分鐘，使其距離午夜只餘三分鐘。The Doomsday Clock moved two minutes forward, to only three minutes from midnight in response to the modernization of nuclear weapons and lack of action to combat climate change. 第一季 / First quarter: 熱帶氣旋強度破紀錄：1 月 30 日 Eunice 於西南印度洋增強為有紀錄以來該區最強的熱帶氣旋；2 月 10 日海高斯成為西北太平洋自 1970 年以來的最強二月颱風；3 月 31 日美莎克增強至相當於五級颶風強度，成為有史以來該區首季度最強的颱風。Various tropical cyclone intensity records were broken: Eunice intensified into the strongest cyclone ever observed in SW Indian Ocean on January 30; Higos became the strongest February typhoon since 1970 in the NW Pacific on February 10; Maysak intensified into a category 5-equivalent typhoon on March 31 and became the strongest typhoon in the first quarter on record. 2月份 :: February 20日 / 20th: 氣旋 Lam 及 Marcia 於同日分別登陸澳洲北及東北部，兩者登陸前皆達澳洲氣象局的四級氣旋強度。Cyclones Lam and Marcia made landfall on the same day at northern and northeastern Australia respectively, both reaching category 4 on the Australian scale. 3月份 :: March 13日 / 13th: 氣旋 Pam 成為南半球最猛烈風暴之一，並橫掃瓦努阿圖，對當地造成重大破壞。Cyclone Pam became one of the strongest storms ever observed in the southern hemisphere. It crossed Vanuatu and led to substantial damage in the island country. 20日 / 20th: 北歐於春分之日出現一次日全食，於法羅群島及斯瓦巴可見。A total solar eclipse took place and was visible in Faroe Islands and Svalbard; this coincided with the date of vernal equinox. 4月份 :: April 25日 / 25th: 尼泊爾拉姆瓊縣發生 7.8 級地震，造成接近 9000 人死亡，地震觸發珠穆朗瑪峰雪崩，19 人喪命。5 月 12 日發生另一次 7.3 級餘震，亦造成超過 200 人死亡。A 7.8-magnitude earthquake occurred near Lamjung, Nepal, killing about 9000. It triggered an avalanche on Mount Everest which killed 19. An aftershock of magnitude 7.3 followed on May 12, resulting in another 200 deaths. 30日 / 30th: 美國太空船信使號完成其使命，燃料用盡後撞落水星表面。After completing its mission, the US spacecraft MESSENGER used up its fuel and crashed on Mercury's surface. 4,6及12月 / Apr, Jun and Dec: 多個節日錄得高溫：4 月 5 日清明節香港天文台氣溫達 30.6 度，及 6 月 20 日端午節的 34.1 度均破節日紀錄；12 月 24 日的 24.7 度則是自 1890 年以來最暖的平安夜。High temperatures at several festivals: The maximum air temperature of 30.6 degrees on April 5 (Ching Ming) and 34.1 degrees on June 20 (Tuen Ng) broke the respective records of the two festivals, while the 24.7 degrees recorded on December 24 made it the warmest Christmas Eve since 1890. 5月份 :: May 24日 / 24th: 美國德州與奧克拉荷馬州受洪水及龍捲風夾擊，合共數十人在這連串惡劣天氣中喪生。The US states of Texas and Oklahoma were struck by flash floods and tornadoes, claiming the lives of several dozen people in the region. 26日 / 26th: 一道低壓槽於華南徘徊，香港當天早上下起傾盆大雨，天文台發出黑色暴雨警告，共維持 65 分鐘。A trough lingered around southern China and produced heavy rainfall within the territory. The HK Observatory issued the Black Rainstorm Warning that morning which lasted for 65 minutes. 5月 / May: 印度受熱浪侵襲，多處高溫超過 45 度，造成超過 2500 人死亡。An Indian heat wave claimed over 2500 lives in the country, with many places reaching temperatures in excess of 45 degrees. 6月份 :: June 20日 / 20th: 香港天文台將熱帶氣旋路徑預報時效由三天延長至五天，以協助市民加強對熱帶氣旋來襲的準備。The HK Observatory extended its tropical cyclone forecast track from three to five days ahead, as a measure to assist the public in enhancing preparation of approaching cyclones. 21日 / 21st: 熱帶氣旋鯨魚靠近海南，香港天文台發出本年首個一號戒備信號，期間本港有狂風驟雨。As tropical cyclone Kujira neared Hainan, the HK Observatory issued the first #1 Standby Signal of the year. Locally, there were some squally thunderstorms and showers. 6-8及11月 / Jun-Aug and Nov: 香港天文台於六月錄得平均氣溫 29.7 度，打破去年六月才創下當月最高平均氣溫 29.0 度的紀錄。香港七至八月的平均氣溫均較正常高，令本年夏季成為有史以來最炎熱的一個。月高溫紀錄其後於十一月再被打破 (24.0 度)。The mean temperature of 29.7 degrees at the HK Observatory this June broke the monthly record of 29.0 degrees set just last June. Together with above-normal temperatures in July and August, the summer of 2015 is the hottest on record. The monthly mean temperature record was later broken again for November (24.0 degrees). 7月份 :: July 1日 / 1st: 歐洲受熱浪侵襲，英國倫敦希斯路機場錄得破紀錄的 36.7 度高溫，法國巴黎及西班牙馬德里氣溫更達接近 40 度。A heat wave swept across Europe, with the mercury at Heathrow Airport in London, UK reaching a record-breaking 36.7 degrees. Temperatures at Paris, France and Madrid, Spain were nearly 40 degrees. 7日 / 7th: 於較早時發射的日本氣象衛星向日葵 8 號正式投入服務，而舊有衛星 MTSAT-1R 則於 12 月 4 日完成使命。Japanese weather satellite Himawari-8 launched earlier entered operational service; its predecessor MTSAT-1R was decommissioned on December 4. 9日 / 9th: 熱帶氣旋蓮花於廣東東部登陸後西進，香港天文台於當天下午發出八號烈風或暴風信號，可是蓮花登陸後減弱速度較快，本港風力遠比預期弱。Tropical cyclone Linfa turned west after making landfall at eastern Guangdong. The HK Observatory issued the #8 Gale or Storm signal that afternoon, but winds turned out to be much lighter than expected as the storm weakened very quickly on land. 14日 / 14th: 美國太空船新視野號飛越冥王星及其衛星，成為第一艘探索冥王星的太空船。NASA's spacecraft New Horizons completed a historic flyby of the dwarf planet Pluto and its moons. 22日 / 22nd: 受活躍西南氣流影響，香港天氣不穩定，當天早上於交椅洲附近出現水龍捲。黃色暴雨警告生效近 12 小時，港島西半山一棵百年古樹倒塌。An active southwesterly airstream resulted in unstable weather in Hong Kong and a waterspout was spotted near Kau Yi Chau that morning. The Amber Rainstorm Warning was in force for almost 12 hours, during which a 100-year-old tree in the Mid-Levels on Hong Kong Island collapsed. 23日 / 23rd: 美國太空總署宣布發現太陽系外行星開普勒 452-b，為首個可能繞近似太陽的恆星之宜居帶上公轉的超級地球。NASA announced the discovery of Kepler-452b, the first potential Super-Earth exoplanet orbiting the habitable zone of a Sun-like star. 8月份 :: August 8日 / 8th: 颱風蘇迪羅登陸台灣，刷新當地多處風速紀錄，台灣及福建廣泛地區出現水浸及停電。受與其相關的下沉氣流影響，華南酷熱天氣加劇，香港天文台同日下午錄得最高氣溫 36.3 度，比舊紀錄高 0.2 度。Typhoon Soudelor made landfall at Taiwan, leading to record-breaking wind speeds at various stations. There were also widespread flooding and power outage in Taiwan and Fujian. The hot weather in southern China was exacerbated by the subsidence associated with the storm; the HK Observatory reached 36.3 degrees that afternoon, breaking the maximum temperature record by 0.2 degrees. 29日 / 29th: 受厄爾尼諾現象影響，中東太平洋的熱帶氣旋活動頻繁，當天出現史上首次三個重大颶風 (Kilo, Ignacio 及 Jimena) 同時存在於該海域的情況。風暴 Oho 其後於 10 月 3 日形成，使本年成為中北太平洋最活躍的一年。El Nino caused an increase in tropical cyclone activity in central and eastern Pacific. This is the first time in the historical record that three major hurricanes (Kilo, Ignacio and Jimena) existed simultaneously in these basins. Cyclone Oho later formed on October 3, making 2015 the most active year in the central north Pacific region. 8-9月 / Aug-Sep: 香港天文台於八月及九月期間並未發出任何熱帶氣旋警告信號，為 1946 年以來首次。The HK Observatory did not issue any tropical cyclone warning signals during the months of August and September; this is the first such occurrence since 1946. 9月份 :: September 16日 / 16th: 智利伊亞佩爾發生 8.3 級地震，造成 14 人死亡，數千人無家可歸。An 8.3-magnitude earthquake occurred near Illapel, Chile, killing 14 and rendered thousands homeless. 24日 / 24th: 廣東汕尾發生一次 3.8 級地震，於香港有感，估計烈度為修訂麥加利地震烈度表的第 IV 度。A 3.8-magnitude earthquake occurred near Shanwei, Guangdong, and was felt in Hong Kong. It was estimated to be of intensity IV on the Modified Mercalli Intensity Scale. 28日 / 28th: 美國太空總署收集從火星偵察軌道器得到的數據，推斷現時火星表面間歇性有液態水流動。NASA stated that new findings from the Mars Reconnaissance Orbiter provided the strongest evidence yet that liquid water flows intermittently on present-day Mars. 28日 / 28th: 時值中秋節，一次月全食於美、歐、非三洲上演。適逢月球處於近地點，令月球視直徑比平均長約百分之 7。A total lunar eclipse took place on Mid-Autumn Festival, and was visible in the Americas, Europe and Africa. The moon was at its closest point to the Earth which magnified its apparent diameter by around 7% compared to the average. 9月 / Sep: 由印尼山火引發的霧霾天氣擴散到新加坡、馬來西亞、菲律賓及越南等東南亞國家。Haze from forest fires in Indonesia spread to other southeast Asian countries such as Singapore, Malaysia, the Philippines and Vietnam. 10月份 :: October 3日 / 3rd: 熱帶氣旋彩虹橫過南海並增強，香港天文台發出三號強風信號。彩虹以強颱風強度登陸湛江，是自 1949 年以來十月登陸廣東的最強風暴。Tropical cyclone Mujigae crossed South China Sea while intensifying, prompting the HK Observatory to issue the #3 Strong Wind Signal. Mujigae made landfall at Zhanjiang as a severe typhoon and became the strongest cyclone to strike Guangdong in October since 1949. 8日 / 8th: 香港天文台位於大老山的新天氣雷達正式啟用，取代已服務 20 多年的本港首部多普勒天氣雷達。同日天文台將 64 公里雷達圖像的更新頻率加密至每 6 分鐘一次。The HK's Observatory new weather radar at Tate's Cairn was officially commissioned, replacing the previous one that had served for more than 20 years and was HK's first Doppler weather radar. The Observatory also increased the update frequency of its 64-km range randar image to once every 6 minutes. 18日 / 18th: 颱風巨爵侵襲菲律賓，用了三天時間圍繞呂宋西北部移動，與其相關的風雨共造成最少 58 人死亡，經濟損失達 110 億披索。Typhoon Koppu battered the Philippines. It took three days to round northwestern Luzon, killing at least 58 and inflicting economical damage of 11 billion pesos. 23日 / 23rd: 於東太平洋的颶風 Patricia 成為西半球史上最強烈的熱帶氣旋，其中心持續風速達每小時 325 公里，最低氣壓為 879 百帕斯卡，風暴其後登陸墨西哥時仍達五級颶風強度。Hurricane Patricia in the Eastern Pacific became the strongest tropical cyclone ever recorded in the Western Hemisphere, with maximum sustained winds of 325 km/h and minimum pressure of 879 hPa. The storm later made landfall in Mexico still as a category 5 hurricane. 11月份 :: November 10月底至11月初 / Late Oct to early Nov: 阿拉伯海於一周內先後孕育出猛烈熱帶氣旋 Chapala 及 Megh，它們均吹襲也門及索馬里一帶，是有史以來首次。For the first time in recorded history, two major tropical cyclones Chapala and Megh developed in the Arabia Sea within a week, both affecting Yemen and Somalia. 12月份 :: December 7日 / 7th: 北京霧霾情況嚴重，懸浮粒子 PM2.5 濃度超過每立方米 180 微克，當局首次發佈最高級別的紅色空氣污染預警。Serious smog conditions in Beijing saw the PM2.5 concentration soaring to more than 180 micrograms per cubic metre, prompting local agency to issue the pollution 'red alert' for the first time in history. 7日 / 7th: 日本的破曉號金星探測器進入金星軌道，是該國首次成功令太空探測器進入其他行星的軌道。Japanese space probe Akatsuki successfully entered the Venusian orbit, making it the first successful planetary exploration mission of the country. 12日 / 12th: 2015 年聯合國氣候峰會的 195 個締約國通過《巴黎協議》，減少碳排放量。Delegates from 195 countries of the 2015 United Nations Climate Change Conference agreed on the Paris Agreement to reduce carbon dioxide emissions. 22日 / 22nd: 美國太空探索科技公司將獵鷹 9 號運載火箭發射升空並成功於卡納維拉爾角空軍基地回收其第一級火箭，開創歷史先河。American aerospace company SpaceX made history by sending a Falcon 9 rocket into space and landing the first stage back on the ground at Cape Canaveral Air Force Station. 其他 :: Others 其他 (請註明。你不需要填寫全部三個空格；請留空未用盡的格子。注意這裡每一個已填寫的空格將分別計進總數內，例如若你在此填寫2個空格，你將只可以剔選其餘11件事件) :: Others (Please specify. 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